// NOTE: This file is autogenerated. Do not modify.
// See scripts/generators/flow.js for script used.

declare class BabelNodeComment {
  value: string;
  start: number;
  end: number;
  loc: BabelNodeSourceLocation;
}

declare class BabelNodeBlockComment extends BabelNodeComment {
  type: "BlockComment";
}

declare class BabelNodeLineComment extends BabelNodeComment {
  type: "LineComment";
}

declare class BabelNodeSourceLocation {
  start: {
    line: number;
    column: number;
  };

  end: {
    line: number;
    column: number;
  };
}

declare class BabelNode {
  leadingComments?: Array<BabelNodeComment>;
  innerComments?: Array<BabelNodeComment>;
  trailingComments?: Array<BabelNodeComment>;
  start: ?number;
  end: ?number;
  loc: ?BabelNodeSourceLocation;
}

declare class BabelNodeArrayExpression extends BabelNode {
  type: "ArrayExpression";
  elements?: Array<null | BabelNodeExpression | BabelNodeSpreadElement>;
}

declare class BabelNodeAssignmentExpression extends BabelNode {
  type: "AssignmentExpression";
  operator: string;
  left: BabelNodeLVal;
  right: BabelNodeExpression;
}

declare class BabelNodeBinaryExpression extends BabelNode {
  type: "BinaryExpression";
  operator: "+" | "-" | "/" | "%" | "*" | "**" | "&" | "|" | ">>" | ">>>" | "<<" | "^" | "==" | "===" | "!=" | "!==" | "in" | "instanceof" | ">" | "<" | ">=" | "<=";
  left: BabelNodeExpression;
  right: BabelNodeExpression;
}

declare class BabelNodeDirective extends BabelNode {
  type: "Directive";
  value: BabelNodeDirectiveLiteral;
}

declare class BabelNodeDirectiveLiteral extends BabelNode {
  type: "DirectiveLiteral";
  value: string;
}

declare class BabelNodeBlockStatement extends BabelNode {
  type: "BlockStatement";
  body: Array<BabelNodeStatement>;
  directives?: Array<BabelNodeDirective>;
}

declare class BabelNodeBreakStatement extends BabelNode {
  type: "BreakStatement";
  label?: BabelNodeIdentifier;
}

declare class BabelNodeCallExpression extends BabelNode {
  type: "CallExpression";
  callee: BabelNodeExpression;
  arguments: Array<BabelNodeExpression | BabelNodeSpreadElement | BabelNodeJSXNamespacedName>;
  optional?: true | false;
  typeParameters?: BabelNodeTypeParameterInstantiation | BabelNodeTSTypeParameterInstantiation;
}

declare class BabelNodeCatchClause extends BabelNode {
  type: "CatchClause";
  param?: BabelNodeIdentifier;
  body: BabelNodeBlockStatement;
}

declare class BabelNodeConditionalExpression extends BabelNode {
  type: "ConditionalExpression";
  test: BabelNodeExpression;
  consequent: BabelNodeExpression;
  alternate: BabelNodeExpression;
}

declare class BabelNodeContinueStatement extends BabelNode {
  type: "ContinueStatement";
  label?: BabelNodeIdentifier;
}

declare class BabelNodeDebuggerStatement extends BabelNode {
  type: "DebuggerStatement";
}

declare class BabelNodeDoWhileStatement extends BabelNode {
  type: "DoWhileStatement";
  test: BabelNodeExpression;
  body: BabelNodeStatement;
}

declare class BabelNodeEmptyStatement extends BabelNode {
  type: "EmptyStatement";
}

declare class BabelNodeExpressionStatement extends BabelNode {
  type: "ExpressionStatement";
  expression: BabelNodeExpression;
}

declare class BabelNodeFile extends BabelNode {
  type: "File";
  program: BabelNodeProgram;
  comments: any;
  tokens: any;
}

declare class BabelNodeForInStatement extends BabelNode {
  type: "ForInStatement";
  left: BabelNodeVariableDeclaration | BabelNodeLVal;
  right: BabelNodeExpression;
  body: BabelNodeStatement;
}

declare class BabelNodeForStatement extends BabelNode {
  type: "ForStatement";
  init?: BabelNodeVariableDeclaration | BabelNodeExpression;
  test?: BabelNodeExpression;
  update?: BabelNodeExpression;
  body: BabelNodeStatement;
}

declare class BabelNodeFunctionDeclaration extends BabelNode {
  type: "FunctionDeclaration";
  id?: BabelNodeIdentifier;
  params: Array<BabelNodeLVal>;
  body: BabelNodeBlockStatement;
  generator?: boolean;
  async?: boolean;
  declare?: boolean;
  returnType?: BabelNodeTypeAnnotation | BabelNodeTSTypeAnnotation | BabelNodeNoop;
  typeParameters?: BabelNodeTypeParameterDeclaration | BabelNodeTSTypeParameterDeclaration | BabelNodeNoop;
}

declare class BabelNodeFunctionExpression extends BabelNode {
  type: "FunctionExpression";
  id?: BabelNodeIdentifier;
  params: Array<BabelNodeLVal>;
  body: BabelNodeBlockStatement;
  generator?: boolean;
  async?: boolean;
  returnType?: BabelNodeTypeAnnotation | BabelNodeTSTypeAnnotation | BabelNodeNoop;
  typeParameters?: BabelNodeTypeParameterDeclaration | BabelNodeTSTypeParameterDeclaration | BabelNodeNoop;
}

declare class BabelNodeIdentifier extends BabelNode {
  type: "Identifier";
  name: string;
  decorators?: Array<BabelNodeDecorator>;
  optional?: boolean;
  typeAnnotation?: BabelNodeTypeAnnotation | BabelNodeTSTypeAnnotation | BabelNodeNoop;
}

declare class BabelNodeIfStatement extends BabelNode {
  type: "IfStatement";
  test: BabelNodeExpression;
  consequent: BabelNodeStatement;
  alternate?: BabelNodeStatement;
}

declare class BabelNodeLabeledStatement extends BabelNode {
  type: "LabeledStatement";
  label: BabelNodeIdentifier;
  body: BabelNodeStatement;
}

declare class BabelNodeStringLiteral extends BabelNode {
  type: "StringLiteral";
  value: string;
}

declare class BabelNodeNumericLiteral extends BabelNode {
  type: "NumericLiteral";
  value: number;
}

declare class BabelNodeNullLiteral extends BabelNode {
  type: "NullLiteral";
}

declare class BabelNodeBooleanLiteral extends BabelNode {
  type: "BooleanLiteral";
  value: boolean;
}

declare class BabelNodeRegExpLiteral extends BabelNode {
  type: "RegExpLiteral";
  pattern: string;
  flags?: string;
}

declare class BabelNodeLogicalExpression extends BabelNode {
  type: "LogicalExpression";
  operator: "||" | "&&" | "??";
  left: BabelNodeExpression;
  right: BabelNodeExpression;
}

declare class BabelNodeMemberExpression extends BabelNode {
  type: "MemberExpression";
  object: BabelNodeExpression;
  property: any;
  computed?: boolean;
  optional?: true | false;
}

declare class BabelNodeNewExpression extends BabelNode {
  type: "NewExpression";
  callee: BabelNodeExpression;
  arguments: Array<BabelNodeExpression | BabelNodeSpreadElement | BabelNodeJSXNamespacedName>;
  optional?: true | false;
  typeParameters?: BabelNodeTypeParameterInstantiation | BabelNodeTSTypeParameterInstantiation;
}

declare class BabelNodeProgram extends BabelNode {
  type: "Program";
  body: Array<BabelNodeStatement>;
  directives?: Array<BabelNodeDirective>;
  sourceType?: "script" | "module";
  sourceFile?: string;
}

declare class BabelNodeObjectExpression extends BabelNode {
  type: "ObjectExpression";
  properties: Array<BabelNodeObjectMethod | BabelNodeObjectProperty | BabelNodeSpreadElement>;
}

declare class BabelNodeObjectMethod extends BabelNode {
  type: "ObjectMethod";
  kind?: "method" | "get" | "set";
  key: any;
  params: Array<BabelNodeLVal>;
  body: BabelNodeBlockStatement;
  computed?: boolean;
  async?: boolean;
  decorators?: Array<BabelNodeDecorator>;
  generator?: boolean;
  returnType?: BabelNodeTypeAnnotation | BabelNodeTSTypeAnnotation | BabelNodeNoop;
  typeParameters?: BabelNodeTypeParameterDeclaration | BabelNodeTSTypeParameterDeclaration | BabelNodeNoop;
}

declare class BabelNodeObjectProperty extends BabelNode {
  type: "ObjectProperty";
  key: any;
  value: BabelNodeExpression | BabelNodePatternLike;
  computed?: boolean;
  shorthand?: boolean;
  decorators?: Array<BabelNodeDecorator>;
}

declare class BabelNodeRestElement extends BabelNode {
  type: "RestElement";
  argument: BabelNodeLVal;
  decorators?: Array<BabelNodeDecorator>;
  typeAnnotation?: BabelNodeTypeAnnotation | BabelNodeTSTypeAnnotation | BabelNodeNoop;
}

declare class BabelNodeReturnStatement extends BabelNode {
  type: "ReturnStatement";
  argument?: BabelNodeExpression;
}

declare class BabelNodeSequenceExpression extends BabelNode {
  type: "SequenceExpression";
  expressions: Array<BabelNodeExpression>;
}

declare class BabelNodeSwitchCase extends BabelNode {
  type: "SwitchCase";
  test?: BabelNodeExpression;
  consequent: Array<BabelNodeStatement>;
}

declare class BabelNodeSwitchStatement extends BabelNode {
  type: "SwitchStatement";
  discriminant: BabelNodeExpression;
  cases: Array<BabelNodeSwitchCase>;
}

declare class BabelNodeThisExpression extends BabelNode {
  type: "ThisExpression";
}

declare class BabelNodeThrowStatement extends BabelNode {
  type: "ThrowStatement";
  argument: BabelNodeExpression;
}

declare class BabelNodeTryStatement extends BabelNode {
  type: "TryStatement";
  block: BabelNodeBlockStatement;
  handler?: BabelNodeCatchClause;
  finalizer?: BabelNodeBlockStatement;
}

declare class BabelNodeUnaryExpression extends BabelNode {
  type: "UnaryExpression";
  operator: "void" | "throw" | "delete" | "!" | "+" | "-" | "~" | "typeof";
  argument: BabelNodeExpression;
  prefix?: boolean;
}

declare class BabelNodeUpdateExpression extends BabelNode {
  type: "UpdateExpression";
  operator: "++" | "--";
  argument: BabelNodeExpression;
  prefix?: boolean;
}

declare class BabelNodeVariableDeclaration extends BabelNode {
  type: "VariableDeclaration";
  kind: "var" | "let" | "const";
  declarations: Array<BabelNodeVariableDeclarator>;
  declare?: boolean;
}

declare class BabelNodeVariableDeclarator extends BabelNode {
  type: "VariableDeclarator";
  id: BabelNodeLVal;
  init?: BabelNodeExpression;
  definite?: boolean;
}

declare class BabelNodeWhileStatement extends BabelNode {
  type: "WhileStatement";
  test: BabelNodeExpression;
  body: BabelNodeBlockStatement | BabelNodeStatement;
}

declare class BabelNodeWithStatement extends BabelNode {
  type: "WithStatement";
  object: BabelNodeExpression;
  body: BabelNodeBlockStatement | BabelNodeStatement;
}

declare class BabelNodeAssignmentPattern extends BabelNode {
  type: "AssignmentPattern";
  left: BabelNodeIdentifier | BabelNodeObjectPattern | BabelNodeArrayPattern;
  right: BabelNodeExpression;
  decorators?: Array<BabelNodeDecorator>;
  typeAnnotation?: BabelNodeTypeAnnotation | BabelNodeTSTypeAnnotation | BabelNodeNoop;
}

declare class BabelNodeArrayPattern extends BabelNode {
  type: "ArrayPattern";
  elements: Array<BabelNodePatternLike>;
  decorators?: Array<BabelNodeDecorator>;
  typeAnnotation?: BabelNodeTypeAnnotation | BabelNodeTSTypeAnnotation | BabelNodeNoop;
}

declare class BabelNodeArrowFunctionExpression extends BabelNode {
  type: "ArrowFunctionExpression";
  params: Array<BabelNodeLVal>;
  body: BabelNodeBlockStatement | BabelNodeExpression;
  async?: boolean;
  expression?: boolean;
  generator?: boolean;
  returnType?: BabelNodeTypeAnnotation | BabelNodeTSTypeAnnotation | BabelNodeNoop;
  typeParameters?: BabelNodeTypeParameterDeclaration | BabelNodeTSTypeParameterDeclaration | BabelNodeNoop;
}

declare class BabelNodeClassBody extends BabelNode {
  type: "ClassBody";
  body: Array<BabelNodeClassMethod | BabelNodeClassProperty | BabelNodeTSDeclareMethod | BabelNodeTSIndexSignature>;
}

declare class BabelNodeClassDeclaration extends BabelNode {
  type: "ClassDeclaration";
  id?: BabelNodeIdentifier;
  superClass?: BabelNodeExpression;
  body: BabelNodeClassBody;
  decorators?: Array<BabelNodeDecorator>;
  abstract?: boolean;
  declare?: boolean;
  mixins?: any;
  superTypeParameters?: BabelNodeTypeParameterInstantiation | BabelNodeTSTypeParameterInstantiation;
  typeParameters?: BabelNodeTypeParameterDeclaration | BabelNodeTSTypeParameterDeclaration | BabelNodeNoop;
}

declare class BabelNodeClassExpression extends BabelNode {
  type: "ClassExpression";
  id?: BabelNodeIdentifier;
  superClass?: BabelNodeExpression;
  body: BabelNodeClassBody;
  decorators?: Array<BabelNodeDecorator>;
  mixins?: any;
  superTypeParameters?: BabelNodeTypeParameterInstantiation | BabelNodeTSTypeParameterInstantiation;
  typeParameters?: BabelNodeTypeParameterDeclaration | BabelNodeTSTypeParameterDeclaration | BabelNodeNoop;
}

declare class BabelNodeExportAllDeclaration extends BabelNode {
  type: "ExportAllDeclaration";
  source: BabelNodeStringLiteral;
}

declare class BabelNodeExportDefaultDeclaration extends BabelNode {
  type: "ExportDefaultDeclaration";
  declaration: BabelNodeFunctionDeclaration | BabelNodeTSDeclareFunction | BabelNodeClassDeclaration | BabelNodeExpression;
}

declare class BabelNodeExportNamedDeclaration extends BabelNode {
  type: "ExportNamedDeclaration";
  declaration?: BabelNodeDeclaration;
  specifiers: Array<BabelNodeExportSpecifier | BabelNodeExportDefaultSpecifier | BabelNodeExportNamespaceSpecifier>;
  source?: BabelNodeStringLiteral;
}

declare class BabelNodeExportSpecifier extends BabelNode {
  type: "ExportSpecifier";
  local: BabelNodeIdentifier;
  exported: BabelNodeIdentifier;
}

declare class BabelNodeForOfStatement extends BabelNode {
  type: "ForOfStatement";
  left: BabelNodeVariableDeclaration | BabelNodeLVal;
  right: BabelNodeExpression;
  body: BabelNodeStatement;
}

declare class BabelNodeImportDeclaration extends BabelNode {
  type: "ImportDeclaration";
  specifiers: Array<BabelNodeImportSpecifier | BabelNodeImportDefaultSpecifier | BabelNodeImportNamespaceSpecifier>;
  source: BabelNodeStringLiteral;
}

declare class BabelNodeImportDefaultSpecifier extends BabelNode {
  type: "ImportDefaultSpecifier";
  local: BabelNodeIdentifier;
}

declare class BabelNodeImportNamespaceSpecifier extends BabelNode {
  type: "ImportNamespaceSpecifier";
  local: BabelNodeIdentifier;
}

declare class BabelNodeImportSpecifier extends BabelNode {
  type: "ImportSpecifier";
  local: BabelNodeIdentifier;
  imported: BabelNodeIdentifier;
  importKind?: null | "type" | "typeof";
}

declare class BabelNodeMetaProperty extends BabelNode {
  type: "MetaProperty";
  meta: BabelNodeIdentifier;
  property: BabelNodeIdentifier;
}

declare class BabelNodeClassMethod extends BabelNode {
  type: "ClassMethod";
  kind?: "get" | "set" | "method" | "constructor";
  key: BabelNodeIdentifier | BabelNodeStringLiteral | BabelNodeNumericLiteral | BabelNodeExpression;
  params: Array<BabelNodeLVal>;
  body: BabelNodeBlockStatement;
  computed?: boolean;
  abstract?: boolean;
  access?: "public" | "private" | "protected";
  accessibility?: "public" | "private" | "protected";
  async?: boolean;
  decorators?: Array<BabelNodeDecorator>;
  generator?: boolean;
  optional?: boolean;
  returnType?: BabelNodeTypeAnnotation | BabelNodeTSTypeAnnotation | BabelNodeNoop;
  typeParameters?: BabelNodeTypeParameterDeclaration | BabelNodeTSTypeParameterDeclaration | BabelNodeNoop;
}

declare class BabelNodeObjectPattern extends BabelNode {
  type: "ObjectPattern";
  properties: Array<BabelNodeRestElement | BabelNodeObjectProperty>;
  decorators?: Array<BabelNodeDecorator>;
  typeAnnotation?: BabelNodeTypeAnnotation | BabelNodeTSTypeAnnotation | BabelNodeNoop;
}

declare class BabelNodeSpreadElement extends BabelNode {
  type: "SpreadElement";
  argument: BabelNodeExpression;
}

declare class BabelNodeSuper extends BabelNode {
  type: "Super";
}

declare class BabelNodeTaggedTemplateExpression extends BabelNode {
  type: "TaggedTemplateExpression";
  tag: BabelNodeExpression;
  quasi: BabelNodeTemplateLiteral;
}

declare class BabelNodeTemplateElement extends BabelNode {
  type: "TemplateElement";
  value: any;
  tail?: boolean;
}

declare class BabelNodeTemplateLiteral extends BabelNode {
  type: "TemplateLiteral";
  quasis: Array<BabelNodeTemplateElement>;
  expressions: Array<BabelNodeExpression>;
}

declare class BabelNodeYieldExpression extends BabelNode {
  type: "YieldExpression";
  argument?: BabelNodeExpression;
  delegate?: boolean;
}

declare class BabelNodeAnyTypeAnnotation extends BabelNode {
  type: "AnyTypeAnnotation";
}

declare class BabelNodeArrayTypeAnnotation extends BabelNode {
  type: "ArrayTypeAnnotation";
  elementType: BabelNodeFlowType;
}

declare class BabelNodeBooleanTypeAnnotation extends BabelNode {
  type: "BooleanTypeAnnotation";
}

declare class BabelNodeBooleanLiteralTypeAnnotation extends BabelNode {
  type: "BooleanLiteralTypeAnnotation";
  value?: boolean;
}

declare class BabelNodeNullLiteralTypeAnnotation extends BabelNode {
  type: "NullLiteralTypeAnnotation";
}

declare class BabelNodeClassImplements extends BabelNode {
  type: "ClassImplements";
  id: BabelNodeIdentifier;
  typeParameters?: BabelNodeTypeParameterInstantiation;
}

declare class BabelNodeDeclareClass extends BabelNode {
  type: "DeclareClass";
  id: BabelNodeIdentifier;
  typeParameters?: BabelNodeTypeParameterInstantiation;
  body: BabelNodeObjectTypeAnnotation;
  mixins?: Array<BabelNodeInterfaceExtends>;
}

declare class BabelNodeDeclareFunction extends BabelNode {
  type: "DeclareFunction";
  id: BabelNodeIdentifier;
  predicate?: BabelNodeDeclaredPredicate;
}

declare class BabelNodeDeclareInterface extends BabelNode {
  type: "DeclareInterface";
  id: BabelNodeIdentifier;
  typeParameters?: BabelNodeTypeParameterDeclaration;
  body: BabelNodeObjectTypeAnnotation;
  mixins?: Array<BabelNodeFlow>;
}

declare class BabelNodeDeclareModule extends BabelNode {
  type: "DeclareModule";
  id: BabelNodeIdentifier | BabelNodeStringLiteral;
  body: BabelNodeBlockStatement;
  kind?: "CommonJS" | "ES";
}

declare class BabelNodeDeclareModuleExports extends BabelNode {
  type: "DeclareModuleExports";
  typeAnnotation: BabelNodeTypeAnnotation;
}

declare class BabelNodeDeclareTypeAlias extends BabelNode {
  type: "DeclareTypeAlias";
  id: BabelNodeIdentifier;
  typeParameters?: BabelNodeTypeParameterDeclaration;
  right: BabelNodeFlowType;
}

declare class BabelNodeDeclareOpaqueType extends BabelNode {
  type: "DeclareOpaqueType";
  id: BabelNodeIdentifier;
  typeParameters?: BabelNodeTypeParameterDeclaration;
  supertype?: BabelNodeFlowType;
}

declare class BabelNodeDeclareVariable extends BabelNode {
  type: "DeclareVariable";
  id: BabelNodeIdentifier;
}

declare class BabelNodeDeclareExportDeclaration extends BabelNode {
  type: "DeclareExportDeclaration";
  declaration?: BabelNodeFlow;
  specifiers?: Array<BabelNodeExportSpecifier | BabelNodeExportNamespaceSpecifier>;
  source?: BabelNodeStringLiteral;
}

declare class BabelNodeDeclareExportAllDeclaration extends BabelNode {
  type: "DeclareExportAllDeclaration";
  source: BabelNodeStringLiteral;
  exportKind?: ["type","value"];
}

declare class BabelNodeDeclaredPredicate extends BabelNode {
  type: "DeclaredPredicate";
  value: BabelNodeFlow;
}

declare class BabelNodeExistsTypeAnnotation extends BabelNode {
  type: "ExistsTypeAnnotation";
}

declare class BabelNodeFunctionTypeAnnotation extends BabelNode {
  type: "FunctionTypeAnnotation";
  typeParameters?: BabelNodeTypeParameterDeclaration;
  params: Array<BabelNodeFunctionTypeParam>;
  rest?: BabelNodeFunctionTypeParam;
  returnType: BabelNodeFlowType;
}

declare class BabelNodeFunctionTypeParam extends BabelNode {
  type: "FunctionTypeParam";
  name?: BabelNodeIdentifier;
  typeAnnotation: BabelNodeFlowType;
  optional?: boolean;
}

declare class BabelNodeGenericTypeAnnotation extends BabelNode {
  type: "GenericTypeAnnotation";
  id: BabelNodeIdentifier;
  typeParameters?: BabelNodeTypeParameterInstantiation;
}

declare class BabelNodeInferredPredicate extends BabelNode {
  type: "InferredPredicate";
}

declare class BabelNodeInterfaceExtends extends BabelNode {
  type: "InterfaceExtends";
  id: BabelNodeIdentifier;
  typeParameters?: BabelNodeTypeParameterInstantiation;
}

declare class BabelNodeInterfaceDeclaration extends BabelNode {
  type: "InterfaceDeclaration";
  id: BabelNodeIdentifier;
  typeParameters?: BabelNodeTypeParameterDeclaration;
  body: BabelNodeObjectTypeAnnotation;
  mixins?: Array<BabelNodeInterfaceExtends>;
}

declare class BabelNodeIntersectionTypeAnnotation extends BabelNode {
  type: "IntersectionTypeAnnotation";
  types: Array<BabelNodeFlowType>;
}

declare class BabelNodeMixedTypeAnnotation extends BabelNode {
  type: "MixedTypeAnnotation";
}

declare class BabelNodeEmptyTypeAnnotation extends BabelNode {
  type: "EmptyTypeAnnotation";
}

declare class BabelNodeNullableTypeAnnotation extends BabelNode {
  type: "NullableTypeAnnotation";
  typeAnnotation: BabelNodeFlowType;
}

declare class BabelNodeNumberLiteralTypeAnnotation extends BabelNode {
  type: "NumberLiteralTypeAnnotation";
  value?: number;
}

declare class BabelNodeNumberTypeAnnotation extends BabelNode {
  type: "NumberTypeAnnotation";
}

declare class BabelNodeObjectTypeAnnotation extends BabelNode {
  type: "ObjectTypeAnnotation";
  properties: Array<BabelNodeObjectTypeProperty | BabelNodeObjectTypeSpreadProperty>;
  indexers?: Array<BabelNodeObjectTypeIndexer>;
  callProperties?: Array<BabelNodeObjectTypeCallProperty>;
  exact?: boolean;
}

declare class BabelNodeObjectTypeCallProperty extends BabelNode {
  type: "ObjectTypeCallProperty";
  value: BabelNodeFlowType;
}

declare class BabelNodeObjectTypeIndexer extends BabelNode {
  type: "ObjectTypeIndexer";
  id?: BabelNodeIdentifier;
  key: BabelNodeFlowType;
  value: BabelNodeFlowType;
  variance?: BabelNodeVariance;
}

declare class BabelNodeObjectTypeProperty extends BabelNode {
  type: "ObjectTypeProperty";
  key: BabelNodeIdentifier | BabelNodeStringLiteral;
  value: BabelNodeFlowType;
  variance?: BabelNodeVariance;
  kind?: "init" | "get" | "set";
  optional?: boolean;
}

declare class BabelNodeObjectTypeSpreadProperty extends BabelNode {
  type: "ObjectTypeSpreadProperty";
  argument: BabelNodeFlowType;
}

declare class BabelNodeOpaqueType extends BabelNode {
  type: "OpaqueType";
  id: BabelNodeIdentifier;
  typeParameters?: BabelNodeTypeParameterDeclaration;
  supertype?: BabelNodeFlowType;
  impltype: BabelNodeFlowType;
}

declare class BabelNodeQualifiedTypeIdentifier extends BabelNode {
  type: "QualifiedTypeIdentifier";
  id: BabelNodeIdentifier;
  qualification: BabelNodeIdentifier | BabelNodeQualifiedTypeIdentifier;
}

declare class BabelNodeStringLiteralTypeAnnotation extends BabelNode {
  type: "StringLiteralTypeAnnotation";
  value?: string;
}

declare class BabelNodeStringTypeAnnotation extends BabelNode {
  type: "StringTypeAnnotation";
}

declare class BabelNodeThisTypeAnnotation extends BabelNode {
  type: "ThisTypeAnnotation";
}

declare class BabelNodeTupleTypeAnnotation extends BabelNode {
  type: "TupleTypeAnnotation";
  types: Array<BabelNodeFlowType>;
}

declare class BabelNodeTypeofTypeAnnotation extends BabelNode {
  type: "TypeofTypeAnnotation";
  argument: BabelNodeFlowType;
}

declare class BabelNodeTypeAlias extends BabelNode {
  type: "TypeAlias";
  id: BabelNodeIdentifier;
  typeParameters?: BabelNodeTypeParameterDeclaration;
  right: BabelNodeFlowType;
}

declare class BabelNodeTypeAnnotation extends BabelNode {
  type: "TypeAnnotation";
  typeAnnotation: BabelNodeFlowType;
}

declare class BabelNodeTypeCastExpression extends BabelNode {
  type: "TypeCastExpression";
  expression: BabelNodeExpression;
  typeAnnotation: BabelNodeTypeAnnotation;
}

declare class BabelNodeTypeParameter extends BabelNode {
  type: "TypeParameter";
  bound?: BabelNodeTypeAnnotation;
  variance?: BabelNodeVariance;
  name?: string;
}

declare class BabelNodeTypeParameterDeclaration extends BabelNode {
  type: "TypeParameterDeclaration";
  params: Array<BabelNodeTypeParameter>;
}

declare class BabelNodeTypeParameterInstantiation extends BabelNode {
  type: "TypeParameterInstantiation";
  params: Array<BabelNodeFlowType>;
}

declare class BabelNodeUnionTypeAnnotation extends BabelNode {
  type: "UnionTypeAnnotation";
  types: Array<BabelNodeFlowType>;
}

declare class BabelNodeVariance extends BabelNode {
  type: "Variance";
  kind: "minus" | "plus";
}

declare class BabelNodeVoidTypeAnnotation extends BabelNode {
  type: "VoidTypeAnnotation";
}

declare class BabelNodeJSXAttribute extends BabelNode {
  type: "JSXAttribute";
  name: BabelNodeJSXIdentifier | BabelNodeJSXNamespacedName;
  value?: BabelNodeJSXElement | BabelNodeJSXFragment | BabelNodeStringLiteral | BabelNodeJSXExpressionContainer;
}

declare class BabelNodeJSXClosingElement extends BabelNode {
  type: "JSXClosingElement";
  name: BabelNodeJSXIdentifier | BabelNodeJSXMemberExpression;
}

declare class BabelNodeJSXElement extends BabelNode {
  type: "JSXElement";
  openingElement: BabelNodeJSXOpeningElement;
  closingElement?: BabelNodeJSXClosingElement;
  children: Array<BabelNodeJSXText | BabelNodeJSXExpressionContainer | BabelNodeJSXSpreadChild | BabelNodeJSXElement | BabelNodeJSXFragment>;
  selfClosing: any;
}

declare class BabelNodeJSXEmptyExpression extends BabelNode {
  type: "JSXEmptyExpression";
}

declare class BabelNodeJSXExpressionContainer extends BabelNode {
  type: "JSXExpressionContainer";
  expression: BabelNodeExpression;
}

declare class BabelNodeJSXSpreadChild extends BabelNode {
  type: "JSXSpreadChild";
  expression: BabelNodeExpression;
}

declare class BabelNodeJSXIdentifier extends BabelNode {
  type: "JSXIdentifier";
  name: string;
}

declare class BabelNodeJSXMemberExpression extends BabelNode {
  type: "JSXMemberExpression";
  object: BabelNodeJSXMemberExpression | BabelNodeJSXIdentifier;
  property: BabelNodeJSXIdentifier;
}

declare class BabelNodeJSXNamespacedName extends BabelNode {
  type: "JSXNamespacedName";
  namespace: BabelNodeJSXIdentifier;
  name: BabelNodeJSXIdentifier;
}

declare class BabelNodeJSXOpeningElement extends BabelNode {
  type: "JSXOpeningElement";
  name: BabelNodeJSXIdentifier | BabelNodeJSXMemberExpression;
  attributes: Array<BabelNodeJSXAttribute | BabelNodeJSXSpreadAttribute>;
  selfClosing?: boolean;
}

declare class BabelNodeJSXSpreadAttribute extends BabelNode {
  type: "JSXSpreadAttribute";
  argument: BabelNodeExpression;
}

declare class BabelNodeJSXText extends BabelNode {
  type: "JSXText";
  value: string;
}

declare class BabelNodeJSXFragment extends BabelNode {
  type: "JSXFragment";
  openingFragment: BabelNodeJSXOpeningFragment;
  closingFragment: BabelNodeJSXClosingFragment;
  children: Array<BabelNodeJSXText | BabelNodeJSXExpressionContainer | BabelNodeJSXSpreadChild | BabelNodeJSXElement | BabelNodeJSXFragment>;
}

declare class BabelNodeJSXOpeningFragment extends BabelNode {
  type: "JSXOpeningFragment";
}

declare class BabelNodeJSXClosingFragment extends BabelNode {
  type: "JSXClosingFragment";
}

declare class BabelNodeNoop extends BabelNode {
  type: "Noop";
}

declare class BabelNodeParenthesizedExpression extends BabelNode {
  type: "ParenthesizedExpression";
  expression: BabelNodeExpression;
}

declare class BabelNodeAwaitExpression extends BabelNode {
  type: "AwaitExpression";
  argument: BabelNodeExpression;
}

declare class BabelNodeBindExpression extends BabelNode {
  type: "BindExpression";
  object: any;
  callee: any;
}

declare class BabelNodeClassProperty extends BabelNode {
  type: "ClassProperty";
  key: BabelNodeIdentifier | BabelNodeStringLiteral | BabelNodeNumericLiteral | BabelNodeExpression;
  value?: BabelNodeExpression;
  typeAnnotation?: BabelNodeTypeAnnotation | BabelNodeTSTypeAnnotation | BabelNodeNoop;
  decorators?: Array<BabelNodeDecorator>;
  computed?: boolean;
  abstract?: boolean;
  accessibility?: "public" | "private" | "protected";
  definite?: boolean;
  optional?: boolean;
  readonly?: boolean;
}

declare class BabelNodeOptionalMemberExpression extends BabelNode {
  type: "OptionalMemberExpression";
  object: BabelNodeExpression;
  property: any;
  computed?: boolean;
  optional: boolean;
}

declare class BabelNodeOptionalCallExpression extends BabelNode {
  type: "OptionalCallExpression";
  callee: BabelNodeExpression;
  arguments: Array<BabelNodeExpression | BabelNodeSpreadElement | BabelNodeJSXNamespacedName>;
  optional: boolean;
  typeParameters?: BabelNodeTypeParameterInstantiation | BabelNodeTSTypeParameterInstantiation;
}

declare class BabelNodeImport extends BabelNode {
  type: "Import";
}

declare class BabelNodeDecorator extends BabelNode {
  type: "Decorator";
  expression: BabelNodeExpression;
}

declare class BabelNodeDoExpression extends BabelNode {
  type: "DoExpression";
  body: BabelNodeBlockStatement;
}

declare class BabelNodeExportDefaultSpecifier extends BabelNode {
  type: "ExportDefaultSpecifier";
  exported: BabelNodeIdentifier;
}

declare class BabelNodeExportNamespaceSpecifier extends BabelNode {
  type: "ExportNamespaceSpecifier";
  exported: BabelNodeIdentifier;
}

declare class BabelNodeTSParameterProperty extends BabelNode {
  type: "TSParameterProperty";
  parameter: BabelNodeIdentifier | BabelNodeAssignmentPattern;
  accessibility?: "public" | "private" | "protected";
  readonly?: boolean;
}

declare class BabelNodeTSDeclareFunction extends BabelNode {
  type: "TSDeclareFunction";
  id?: BabelNodeIdentifier;
  typeParameters?: BabelNodeTSTypeParameterDeclaration | BabelNodeNoop;
  params: Array<BabelNodeLVal>;
  returnType?: BabelNodeTSTypeAnnotation | BabelNodeNoop;
  async?: boolean;
  declare?: boolean;
  generator?: boolean;
}

declare class BabelNodeTSDeclareMethod extends BabelNode {
  type: "TSDeclareMethod";
  decorators?: Array<BabelNodeDecorator>;
  key: BabelNodeIdentifier | BabelNodeStringLiteral | BabelNodeNumericLiteral | BabelNodeExpression;
  typeParameters?: BabelNodeTSTypeParameterDeclaration | BabelNodeNoop;
  params: Array<BabelNodeLVal>;
  returnType?: BabelNodeTSTypeAnnotation | BabelNodeNoop;
  abstract?: boolean;
  access?: "public" | "private" | "protected";
  accessibility?: "public" | "private" | "protected";
  async?: boolean;
  computed?: boolean;
  generator?: boolean;
  kind?: "get" | "set" | "method" | "constructor";
  optional?: boolean;
}

declare class BabelNodeTSQualifiedName extends BabelNode {
  type: "TSQualifiedName";
  left: BabelNodeTSEntityName;
  right: BabelNodeIdentifier;
}

declare class BabelNodeTSCallSignatureDeclaration extends BabelNode {
  type: "TSCallSignatureDeclaration";
  typeParameters?: BabelNodeTSTypeParameterDeclaration;
  parameters?: Array<BabelNodeIdentifier | BabelNodeRestElement>;
  typeAnnotation?: BabelNodeTSTypeAnnotation;
}

declare class BabelNodeTSConstructSignatureDeclaration extends BabelNode {
  type: "TSConstructSignatureDeclaration";
  typeParameters?: BabelNodeTSTypeParameterDeclaration;
  parameters?: Array<BabelNodeIdentifier | BabelNodeRestElement>;
  typeAnnotation?: BabelNodeTSTypeAnnotation;
}

declare class BabelNodeTSPropertySignature extends BabelNode {
  type: "TSPropertySignature";
  key: BabelNodeExpression;
  typeAnnotation?: BabelNodeTSTypeAnnotation;
  initializer?: BabelNodeExpression;
  computed?: boolean;
  optional?: boolean;
  readonly?: boolean;
}

declare class BabelNodeTSMethodSignature extends BabelNode {
  type: "TSMethodSignature";
  key: BabelNodeExpression;
  typeParameters?: BabelNodeTSTypeParameterDeclaration;
  parameters?: Array<BabelNodeIdentifier | BabelNodeRestElement>;
  typeAnnotation?: BabelNodeTSTypeAnnotation;
  computed?: boolean;
  optional?: boolean;
}

declare class BabelNodeTSIndexSignature extends BabelNode {
  type: "TSIndexSignature";
  parameters: Array<BabelNodeIdentifier>;
  typeAnnotation?: BabelNodeTSTypeAnnotation;
  readonly?: boolean;
}

declare class BabelNodeTSAnyKeyword extends BabelNode {
  type: "TSAnyKeyword";
}

declare class BabelNodeTSNumberKeyword extends BabelNode {
  type: "TSNumberKeyword";
}

declare class BabelNodeTSObjectKeyword extends BabelNode {
  type: "TSObjectKeyword";
}

declare class BabelNodeTSBooleanKeyword extends BabelNode {
  type: "TSBooleanKeyword";
}

declare class BabelNodeTSStringKeyword extends BabelNode {
  type: "TSStringKeyword";
}

declare class BabelNodeTSSymbolKeyword extends BabelNode {
  type: "TSSymbolKeyword";
}

declare class BabelNodeTSVoidKeyword extends BabelNode {
  type: "TSVoidKeyword";
}

declare class BabelNodeTSUndefinedKeyword extends BabelNode {
  type: "TSUndefinedKeyword";
}

declare class BabelNodeTSNullKeyword extends BabelNode {
  type: "TSNullKeyword";
}

declare class BabelNodeTSNeverKeyword extends BabelNode {
  type: "TSNeverKeyword";
}

declare class BabelNodeTSThisType extends BabelNode {
  type: "TSThisType";
}

declare class BabelNodeTSFunctionType extends BabelNode {
  type: "TSFunctionType";
  typeParameters?: BabelNodeTSTypeParameterDeclaration;
  typeAnnotation?: BabelNodeTSTypeAnnotation;
  parameters?: Array<BabelNodeIdentifier | BabelNodeRestElement>;
}

declare class BabelNodeTSConstructorType extends BabelNode {
  type: "TSConstructorType";
  typeParameters?: BabelNodeTSTypeParameterDeclaration;
  typeAnnotation?: BabelNodeTSTypeAnnotation;
  parameters?: Array<BabelNodeIdentifier | BabelNodeRestElement>;
}

declare class BabelNodeTSTypeReference extends BabelNode {
  type: "TSTypeReference";
  typeName: BabelNodeTSEntityName;
  typeParameters?: BabelNodeTSTypeParameterInstantiation;
}

declare class BabelNodeTSTypePredicate extends BabelNode {
  type: "TSTypePredicate";
  parameterName: BabelNodeIdentifier | BabelNodeTSThisType;
  typeAnnotation: BabelNodeTSTypeAnnotation;
}

declare class BabelNodeTSTypeQuery extends BabelNode {
  type: "TSTypeQuery";
  exprName: BabelNodeTSEntityName;
}

declare class BabelNodeTSTypeLiteral extends BabelNode {
  type: "TSTypeLiteral";
  members: Array<BabelNodeTSTypeElement>;
}

declare class BabelNodeTSArrayType extends BabelNode {
  type: "TSArrayType";
  elementType: BabelNodeTSType;
}

declare class BabelNodeTSTupleType extends BabelNode {
  type: "TSTupleType";
  elementTypes: Array<BabelNodeTSType>;
}

declare class BabelNodeTSUnionType extends BabelNode {
  type: "TSUnionType";
  types: Array<BabelNodeTSType>;
}

declare class BabelNodeTSIntersectionType extends BabelNode {
  type: "TSIntersectionType";
  types: Array<BabelNodeTSType>;
}

declare class BabelNodeTSConditionalType extends BabelNode {
  type: "TSConditionalType";
  checkType: BabelNodeTSType;
  extendsType: BabelNodeTSType;
  trueType: BabelNodeTSType;
  falseType: BabelNodeTSType;
}

declare class BabelNodeTSInferType extends BabelNode {
  type: "TSInferType";
  typeParameter: BabelNodeTSType;
}

declare class BabelNodeTSParenthesizedType extends BabelNode {
  type: "TSParenthesizedType";
  typeAnnotation: BabelNodeTSType;
}

declare class BabelNodeTSTypeOperator extends BabelNode {
  type: "TSTypeOperator";
  typeAnnotation: BabelNodeTSType;
  operator?: string;
}

declare class BabelNodeTSIndexedAccessType extends BabelNode {
  type: "TSIndexedAccessType";
  objectType: BabelNodeTSType;
  indexType: BabelNodeTSType;
}

declare class BabelNodeTSMappedType extends BabelNode {
  type: "TSMappedType";
  typeParameter: BabelNodeTSTypeParameter;
  typeAnnotation?: BabelNodeTSType;
  optional?: boolean;
  readonly?: boolean;
}

declare class BabelNodeTSLiteralType extends BabelNode {
  type: "TSLiteralType";
  literal: BabelNodeNumericLiteral | BabelNodeStringLiteral | BabelNodeBooleanLiteral;
}

declare class BabelNodeTSExpressionWithTypeArguments extends BabelNode {
  type: "TSExpressionWithTypeArguments";
  expression: BabelNodeTSEntityName;
  typeParameters?: BabelNodeTSTypeParameterInstantiation;
}

declare class BabelNodeTSInterfaceDeclaration extends BabelNode {
  type: "TSInterfaceDeclaration";
  id: BabelNodeIdentifier;
  typeParameters?: BabelNodeTSTypeParameterDeclaration;
  body: BabelNodeTSInterfaceBody;
  declare?: boolean;
}

declare class BabelNodeTSInterfaceBody extends BabelNode {
  type: "TSInterfaceBody";
  body: Array<BabelNodeTSTypeElement>;
}

declare class BabelNodeTSTypeAliasDeclaration extends BabelNode {
  type: "TSTypeAliasDeclaration";
  id: BabelNodeIdentifier;
  typeParameters?: BabelNodeTSTypeParameterDeclaration;
  typeAnnotation: BabelNodeTSType;
  declare?: boolean;
}

declare class BabelNodeTSAsExpression extends BabelNode {
  type: "TSAsExpression";
  expression: BabelNodeExpression;
  typeAnnotation: BabelNodeTSType;
}

declare class BabelNodeTSTypeAssertion extends BabelNode {
  type: "TSTypeAssertion";
  typeAnnotation: BabelNodeTSType;
  expression: BabelNodeExpression;
}

declare class BabelNodeTSEnumDeclaration extends BabelNode {
  type: "TSEnumDeclaration";
  id: BabelNodeIdentifier;
  members: Array<BabelNodeTSEnumMember>;
  declare?: boolean;
  initializer?: BabelNodeExpression;
}

declare class BabelNodeTSEnumMember extends BabelNode {
  type: "TSEnumMember";
  id: BabelNodeIdentifier | BabelNodeStringLiteral;
  initializer?: BabelNodeExpression;
}

declare class BabelNodeTSModuleDeclaration extends BabelNode {
  type: "TSModuleDeclaration";
  id: BabelNodeIdentifier | BabelNodeStringLiteral;
  body: BabelNodeTSModuleBlock | BabelNodeTSModuleDeclaration;
  declare?: boolean;
  global?: boolean;
}

declare class BabelNodeTSModuleBlock extends BabelNode {
  type: "TSModuleBlock";
  body: Array<BabelNodeStatement>;
}

declare class BabelNodeTSImportEqualsDeclaration extends BabelNode {
  type: "TSImportEqualsDeclaration";
  id: BabelNodeIdentifier;
  moduleReference: BabelNodeTSEntityName | BabelNodeTSExternalModuleReference;
  isExport?: boolean;
}

declare class BabelNodeTSExternalModuleReference extends BabelNode {
  type: "TSExternalModuleReference";
  expression: BabelNodeStringLiteral;
}

declare class BabelNodeTSNonNullExpression extends BabelNode {
  type: "TSNonNullExpression";
  expression: BabelNodeExpression;
}

declare class BabelNodeTSExportAssignment extends BabelNode {
  type: "TSExportAssignment";
  expression: BabelNodeExpression;
}

declare class BabelNodeTSNamespaceExportDeclaration extends BabelNode {
  type: "TSNamespaceExportDeclaration";
  id: BabelNodeIdentifier;
}

declare class BabelNodeTSTypeAnnotation extends BabelNode {
  type: "TSTypeAnnotation";
  typeAnnotation: BabelNodeTSType;
}

declare class BabelNodeTSTypeParameterInstantiation extends BabelNode {
  type: "TSTypeParameterInstantiation";
  params: Array<BabelNodeTSType>;
}

declare class BabelNodeTSTypeParameterDeclaration extends BabelNode {
  type: "TSTypeParameterDeclaration";
  params: Array<BabelNodeTSTypeParameter>;
}

declare class BabelNodeTSTypeParameter extends BabelNode {
  type: "TSTypeParameter";
  constraint?: BabelNodeTSType;
  name?: string;
}

type BabelNodeExpression = BabelNodeArrayExpression | BabelNodeAssignmentExpression | BabelNodeBinaryExpression | BabelNodeCallExpression | BabelNodeConditionalExpression | BabelNodeFunctionExpression | BabelNodeIdentifier | BabelNodeStringLiteral | BabelNodeNumericLiteral | BabelNodeNullLiteral | BabelNodeBooleanLiteral | BabelNodeRegExpLiteral | BabelNodeLogicalExpression | BabelNodeMemberExpression | BabelNodeNewExpression | BabelNodeObjectExpression | BabelNodeSequenceExpression | BabelNodeThisExpression | BabelNodeUnaryExpression | BabelNodeUpdateExpression | BabelNodeArrowFunctionExpression | BabelNodeClassExpression | BabelNodeMetaProperty | BabelNodeSuper | BabelNodeTaggedTemplateExpression | BabelNodeTemplateLiteral | BabelNodeYieldExpression | BabelNodeTypeCastExpression | BabelNodeJSXElement | BabelNodeJSXFragment | BabelNodeParenthesizedExpression | BabelNodeAwaitExpression | BabelNodeBindExpression | BabelNodeOptionalMemberExpression | BabelNodeOptionalCallExpression | BabelNodeImport | BabelNodeDoExpression | BabelNodeTSAsExpression | BabelNodeTSTypeAssertion | BabelNodeTSNonNullExpression;
type BabelNodeBinary = BabelNodeBinaryExpression | BabelNodeLogicalExpression;
type BabelNodeScopable = BabelNodeBlockStatement | BabelNodeCatchClause | BabelNodeDoWhileStatement | BabelNodeForInStatement | BabelNodeForStatement | BabelNodeFunctionDeclaration | BabelNodeFunctionExpression | BabelNodeProgram | BabelNodeObjectMethod | BabelNodeSwitchStatement | BabelNodeWhileStatement | BabelNodeArrowFunctionExpression | BabelNodeClassDeclaration | BabelNodeClassExpression | BabelNodeForOfStatement | BabelNodeClassMethod;
type BabelNodeBlockParent = BabelNodeBlockStatement | BabelNodeCatchClause | BabelNodeDoWhileStatement | BabelNodeForInStatement | BabelNodeForStatement | BabelNodeFunctionDeclaration | BabelNodeFunctionExpression | BabelNodeProgram | BabelNodeObjectMethod | BabelNodeSwitchStatement | BabelNodeWhileStatement | BabelNodeArrowFunctionExpression | BabelNodeForOfStatement | BabelNodeClassMethod;
type BabelNodeBlock = BabelNodeBlockStatement | BabelNodeProgram;
type BabelNodeStatement = BabelNodeBlockStatement | BabelNodeBreakStatement | BabelNodeContinueStatement | BabelNodeDebuggerStatement | BabelNodeDoWhileStatement | BabelNodeEmptyStatement | BabelNodeExpressionStatement | BabelNodeForInStatement | BabelNodeForStatement | BabelNodeFunctionDeclaration | BabelNodeIfStatement | BabelNodeLabeledStatement | BabelNodeReturnStatement | BabelNodeSwitchStatement | BabelNodeThrowStatement | BabelNodeTryStatement | BabelNodeVariableDeclaration | BabelNodeWhileStatement | BabelNodeWithStatement | BabelNodeClassDeclaration | BabelNodeExportAllDeclaration | BabelNodeExportDefaultDeclaration | BabelNodeExportNamedDeclaration | BabelNodeForOfStatement | BabelNodeImportDeclaration | BabelNodeDeclareClass | BabelNodeDeclareFunction | BabelNodeDeclareInterface | BabelNodeDeclareModule | BabelNodeDeclareModuleExports | BabelNodeDeclareTypeAlias | BabelNodeDeclareOpaqueType | BabelNodeDeclareVariable | BabelNodeDeclareExportDeclaration | BabelNodeDeclareExportAllDeclaration | BabelNodeInterfaceDeclaration | BabelNodeOpaqueType | BabelNodeTypeAlias | BabelNodeTSDeclareFunction | BabelNodeTSInterfaceDeclaration | BabelNodeTSTypeAliasDeclaration | BabelNodeTSEnumDeclaration | BabelNodeTSModuleDeclaration | BabelNodeTSImportEqualsDeclaration | BabelNodeTSExportAssignment | BabelNodeTSNamespaceExportDeclaration;
type BabelNodeTerminatorless = BabelNodeBreakStatement | BabelNodeContinueStatement | BabelNodeReturnStatement | BabelNodeThrowStatement | BabelNodeYieldExpression | BabelNodeAwaitExpression;
type BabelNodeCompletionStatement = BabelNodeBreakStatement | BabelNodeContinueStatement | BabelNodeReturnStatement | BabelNodeThrowStatement;
type BabelNodeConditional = BabelNodeConditionalExpression | BabelNodeIfStatement;
type BabelNodeLoop = BabelNodeDoWhileStatement | BabelNodeForInStatement | BabelNodeForStatement | BabelNodeWhileStatement | BabelNodeForOfStatement;
type BabelNodeWhile = BabelNodeDoWhileStatement | BabelNodeWhileStatement;
type BabelNodeExpressionWrapper = BabelNodeExpressionStatement | BabelNodeTypeCastExpression | BabelNodeParenthesizedExpression;
type BabelNodeFor = BabelNodeForInStatement | BabelNodeForStatement | BabelNodeForOfStatement;
type BabelNodeForXStatement = BabelNodeForInStatement | BabelNodeForOfStatement;
type BabelNodeFunction = BabelNodeFunctionDeclaration | BabelNodeFunctionExpression | BabelNodeObjectMethod | BabelNodeArrowFunctionExpression | BabelNodeClassMethod;
type BabelNodeFunctionParent = BabelNodeFunctionDeclaration | BabelNodeFunctionExpression | BabelNodeObjectMethod | BabelNodeArrowFunctionExpression | BabelNodeClassMethod;
type BabelNodePureish = BabelNodeFunctionDeclaration | BabelNodeFunctionExpression | BabelNodeStringLiteral | BabelNodeNumericLiteral | BabelNodeNullLiteral | BabelNodeBooleanLiteral | BabelNodeArrowFunctionExpression | BabelNodeClassDeclaration | BabelNodeClassExpression;
type BabelNodeDeclaration = BabelNodeFunctionDeclaration | BabelNodeVariableDeclaration | BabelNodeClassDeclaration | BabelNodeExportAllDeclaration | BabelNodeExportDefaultDeclaration | BabelNodeExportNamedDeclaration | BabelNodeImportDeclaration | BabelNodeDeclareClass | BabelNodeDeclareFunction | BabelNodeDeclareInterface | BabelNodeDeclareModule | BabelNodeDeclareModuleExports | BabelNodeDeclareTypeAlias | BabelNodeDeclareOpaqueType | BabelNodeDeclareVariable | BabelNodeDeclareExportDeclaration | BabelNodeDeclareExportAllDeclaration | BabelNodeInterfaceDeclaration | BabelNodeOpaqueType | BabelNodeTypeAlias | BabelNodeTSDeclareFunction | BabelNodeTSInterfaceDeclaration | BabelNodeTSTypeAliasDeclaration | BabelNodeTSEnumDeclaration | BabelNodeTSModuleDeclaration;
type BabelNodePatternLike = BabelNodeIdentifier | BabelNodeRestElement | BabelNodeAssignmentPattern | BabelNodeArrayPattern | BabelNodeObjectPattern;
type BabelNodeLVal = BabelNodeIdentifier | BabelNodeMemberExpression | BabelNodeRestElement | BabelNodeAssignmentPattern | BabelNodeArrayPattern | BabelNodeObjectPattern | BabelNodeTSParameterProperty;
type BabelNodeTSEntityName = BabelNodeIdentifier | BabelNodeTSQualifiedName;
type BabelNodeLiteral = BabelNodeStringLiteral | BabelNodeNumericLiteral | BabelNodeNullLiteral | BabelNodeBooleanLiteral | BabelNodeRegExpLiteral | BabelNodeTemplateLiteral;
type BabelNodeImmutable = BabelNodeStringLiteral | BabelNodeNumericLiteral | BabelNodeNullLiteral | BabelNodeBooleanLiteral | BabelNodeJSXAttribute | BabelNodeJSXClosingElement | BabelNodeJSXElement | BabelNodeJSXExpressionContainer | BabelNodeJSXSpreadChild | BabelNodeJSXOpeningElement | BabelNodeJSXText | BabelNodeJSXFragment | BabelNodeJSXOpeningFragment | BabelNodeJSXClosingFragment;
type BabelNodeUserWhitespacable = BabelNodeObjectMethod | BabelNodeObjectProperty | BabelNodeObjectTypeCallProperty | BabelNodeObjectTypeIndexer | BabelNodeObjectTypeProperty | BabelNodeObjectTypeSpreadProperty;
type BabelNodeMethod = BabelNodeObjectMethod | BabelNodeClassMethod;
type BabelNodeObjectMember = BabelNodeObjectMethod | BabelNodeObjectProperty;
type BabelNodeProperty = BabelNodeObjectProperty | BabelNodeClassProperty;
type BabelNodeUnaryLike = BabelNodeUnaryExpression | BabelNodeSpreadElement;
type BabelNodePattern = BabelNodeAssignmentPattern | BabelNodeArrayPattern | BabelNodeObjectPattern;
type BabelNodeClass = BabelNodeClassDeclaration | BabelNodeClassExpression;
type BabelNodeModuleDeclaration = BabelNodeExportAllDeclaration | BabelNodeExportDefaultDeclaration | BabelNodeExportNamedDeclaration | BabelNodeImportDeclaration;
type BabelNodeExportDeclaration = BabelNodeExportAllDeclaration | BabelNodeExportDefaultDeclaration | BabelNodeExportNamedDeclaration;
type BabelNodeModuleSpecifier = BabelNodeExportSpecifier | BabelNodeImportDefaultSpecifier | BabelNodeImportNamespaceSpecifier | BabelNodeImportSpecifier | BabelNodeExportDefaultSpecifier | BabelNodeExportNamespaceSpecifier;
type BabelNodeFlow = BabelNodeAnyTypeAnnotation | BabelNodeArrayTypeAnnotation | BabelNodeBooleanTypeAnnotation | BabelNodeBooleanLiteralTypeAnnotation | BabelNodeNullLiteralTypeAnnotation | BabelNodeClassImplements | BabelNodeDeclareClass | BabelNodeDeclareFunction | BabelNodeDeclareInterface | BabelNodeDeclareModule | BabelNodeDeclareModuleExports | BabelNodeDeclareTypeAlias | BabelNodeDeclareOpaqueType | BabelNodeDeclareVariable | BabelNodeDeclareExportDeclaration | BabelNodeDeclareExportAllDeclaration | BabelNodeDeclaredPredicate | BabelNodeExistsTypeAnnotation | BabelNodeFunctionTypeAnnotation | BabelNodeFunctionTypeParam | BabelNodeGenericTypeAnnotation | BabelNodeInferredPredicate | BabelNodeInterfaceExtends | BabelNodeInterfaceDeclaration | BabelNodeIntersectionTypeAnnotation | BabelNodeMixedTypeAnnotation | BabelNodeEmptyTypeAnnotation | BabelNodeNullableTypeAnnotation | BabelNodeNumberLiteralTypeAnnotation | BabelNodeNumberTypeAnnotation | BabelNodeObjectTypeAnnotation | BabelNodeObjectTypeCallProperty | BabelNodeObjectTypeIndexer | BabelNodeObjectTypeProperty | BabelNodeObjectTypeSpreadProperty | BabelNodeOpaqueType | BabelNodeQualifiedTypeIdentifier | BabelNodeStringLiteralTypeAnnotation | BabelNodeStringTypeAnnotation | BabelNodeThisTypeAnnotation | BabelNodeTupleTypeAnnotation | BabelNodeTypeofTypeAnnotation | BabelNodeTypeAlias | BabelNodeTypeAnnotation | BabelNodeTypeCastExpression | BabelNodeTypeParameter | BabelNodeTypeParameterDeclaration | BabelNodeTypeParameterInstantiation | BabelNodeUnionTypeAnnotation | BabelNodeVariance | BabelNodeVoidTypeAnnotation;
type BabelNodeFlowType = BabelNodeAnyTypeAnnotation | BabelNodeArrayTypeAnnotation | BabelNodeBooleanTypeAnnotation | BabelNodeBooleanLiteralTypeAnnotation | BabelNodeNullLiteralTypeAnnotation | BabelNodeExistsTypeAnnotation | BabelNodeFunctionTypeAnnotation | BabelNodeGenericTypeAnnotation | BabelNodeIntersectionTypeAnnotation | BabelNodeMixedTypeAnnotation | BabelNodeEmptyTypeAnnotation | BabelNodeNullableTypeAnnotation | BabelNodeNumberLiteralTypeAnnotation | BabelNodeNumberTypeAnnotation | BabelNodeObjectTypeAnnotation | BabelNodeStringLiteralTypeAnnotation | BabelNodeStringTypeAnnotation | BabelNodeThisTypeAnnotation | BabelNodeTupleTypeAnnotation | BabelNodeTypeofTypeAnnotation | BabelNodeUnionTypeAnnotation | BabelNodeVoidTypeAnnotation;
type BabelNodeFlowBaseAnnotation = BabelNodeAnyTypeAnnotation | BabelNodeBooleanTypeAnnotation | BabelNodeNullLiteralTypeAnnotation | BabelNodeMixedTypeAnnotation | BabelNodeEmptyTypeAnnotation | BabelNodeNumberTypeAnnotation | BabelNodeStringTypeAnnotation | BabelNodeThisTypeAnnotation | BabelNodeVoidTypeAnnotation;
type BabelNodeFlowDeclaration = BabelNodeDeclareClass | BabelNodeDeclareFunction | BabelNodeDeclareInterface | BabelNodeDeclareModule | BabelNodeDeclareModuleExports | BabelNodeDeclareTypeAlias | BabelNodeDeclareOpaqueType | BabelNodeDeclareVariable | BabelNodeDeclareExportDeclaration | BabelNodeDeclareExportAllDeclaration | BabelNodeInterfaceDeclaration | BabelNodeOpaqueType | BabelNodeTypeAlias;
type BabelNodeFlowPredicate = BabelNodeDeclaredPredicate | BabelNodeInferredPredicate;
type BabelNodeJSX = BabelNodeJSXAttribute | BabelNodeJSXClosingElement | BabelNodeJSXElement | BabelNodeJSXEmptyExpression | BabelNodeJSXExpressionContainer | BabelNodeJSXSpreadChild | BabelNodeJSXIdentifier | BabelNodeJSXMemberExpression | BabelNodeJSXNamespacedName | BabelNodeJSXOpeningElement | BabelNodeJSXSpreadAttribute | BabelNodeJSXText | BabelNodeJSXFragment | BabelNodeJSXOpeningFragment | BabelNodeJSXClosingFragment;
type BabelNodeTSTypeElement = BabelNodeTSCallSignatureDeclaration | BabelNodeTSConstructSignatureDeclaration | BabelNodeTSPropertySignature | BabelNodeTSMethodSignature | BabelNodeTSIndexSignature;
type BabelNodeTSType = BabelNodeTSAnyKeyword | BabelNodeTSNumberKeyword | BabelNodeTSObjectKeyword | BabelNodeTSBooleanKeyword | BabelNodeTSStringKeyword | BabelNodeTSSymbolKeyword | BabelNodeTSVoidKeyword | BabelNodeTSUndefinedKeyword | BabelNodeTSNullKeyword | BabelNodeTSNeverKeyword | BabelNodeTSThisType | BabelNodeTSFunctionType | BabelNodeTSConstructorType | BabelNodeTSTypeReference | BabelNodeTSTypePredicate | BabelNodeTSTypeQuery | BabelNodeTSTypeLiteral | BabelNodeTSArrayType | BabelNodeTSTupleType | BabelNodeTSUnionType | BabelNodeTSIntersectionType | BabelNodeTSConditionalType | BabelNodeTSInferType | BabelNodeTSParenthesizedType | BabelNodeTSTypeOperator | BabelNodeTSIndexedAccessType | BabelNodeTSMappedType | BabelNodeTSLiteralType | BabelNodeTSExpressionWithTypeArguments;

declare module "@babel/types" {
  declare function arrayExpression(elements?: Array<null | BabelNodeExpression | BabelNodeSpreadElement>): BabelNodeArrayExpression;
  declare function assignmentExpression(operator: string, left: BabelNodeLVal, right: BabelNodeExpression): BabelNodeAssignmentExpression;
  declare function binaryExpression(operator: "+" | "-" | "/" | "%" | "*" | "**" | "&" | "|" | ">>" | ">>>" | "<<" | "^" | "==" | "===" | "!=" | "!==" | "in" | "instanceof" | ">" | "<" | ">=" | "<=", left: BabelNodeExpression, right: BabelNodeExpression): BabelNodeBinaryExpression;
  declare function directive(value: BabelNodeDirectiveLiteral): BabelNodeDirective;
  declare function directiveLiteral(value: string): BabelNodeDirectiveLiteral;
  declare function blockStatement(body: Array<BabelNodeStatement>, directives?: Array<BabelNodeDirective>): BabelNodeBlockStatement;
  declare function breakStatement(label?: BabelNodeIdentifier): BabelNodeBreakStatement;
  declare function callExpression(callee: BabelNodeExpression, _arguments: Array<BabelNodeExpression | BabelNodeSpreadElement | BabelNodeJSXNamespacedName>, optional?: true | false, typeParameters?: BabelNodeTypeParameterInstantiation | BabelNodeTSTypeParameterInstantiation): BabelNodeCallExpression;
  declare function catchClause(param?: BabelNodeIdentifier, body: BabelNodeBlockStatement): BabelNodeCatchClause;
  declare function conditionalExpression(test: BabelNodeExpression, consequent: BabelNodeExpression, alternate: BabelNodeExpression): BabelNodeConditionalExpression;
  declare function continueStatement(label?: BabelNodeIdentifier): BabelNodeContinueStatement;
  declare function debuggerStatement(): BabelNodeDebuggerStatement;
  declare function doWhileStatement(test: BabelNodeExpression, body: BabelNodeStatement): BabelNodeDoWhileStatement;
  declare function emptyStatement(): BabelNodeEmptyStatement;
  declare function expressionStatement(expression: BabelNodeExpression): BabelNodeExpressionStatement;
  declare function file(program: BabelNodeProgram, comments: any, tokens: any): BabelNodeFile;
  declare function forInStatement(left: BabelNodeVariableDeclaration | BabelNodeLVal, right: BabelNodeExpression, body: BabelNodeStatement): BabelNodeForInStatement;
  declare function forStatement(init?: BabelNodeVariableDeclaration | BabelNodeExpression, test?: BabelNodeExpression, update?: BabelNodeExpression, body: BabelNodeStatement): BabelNodeForStatement;
  declare function functionDeclaration(id?: BabelNodeIdentifier, params: Array<BabelNodeLVal>, body: BabelNodeBlockStatement, generator?: boolean, async?: boolean, declare?: boolean, returnType?: BabelNodeTypeAnnotation | BabelNodeTSTypeAnnotation | BabelNodeNoop, typeParameters?: BabelNodeTypeParameterDeclaration | BabelNodeTSTypeParameterDeclaration | BabelNodeNoop): BabelNodeFunctionDeclaration;
  declare function functionExpression(id?: BabelNodeIdentifier, params: Array<BabelNodeLVal>, body: BabelNodeBlockStatement, generator?: boolean, async?: boolean, returnType?: BabelNodeTypeAnnotation | BabelNodeTSTypeAnnotation | BabelNodeNoop, typeParameters?: BabelNodeTypeParameterDeclaration | BabelNodeTSTypeParameterDeclaration | BabelNodeNoop): BabelNodeFunctionExpression;
  declare function identifier(name: string, decorators?: Array<BabelNodeDecorator>, optional?: boolean, typeAnnotation?: BabelNodeTypeAnnotation | BabelNodeTSTypeAnnotation | BabelNodeNoop): BabelNodeIdentifier;
  declare function ifStatement(test: BabelNodeExpression, consequent: BabelNodeStatement, alternate?: BabelNodeStatement): BabelNodeIfStatement;
  declare function labeledStatement(label: BabelNodeIdentifier, body: BabelNodeStatement): BabelNodeLabeledStatement;
  declare function stringLiteral(value: string): BabelNodeStringLiteral;
  declare function numericLiteral(value: number): BabelNodeNumericLiteral;
  declare function nullLiteral(): BabelNodeNullLiteral;
  declare function booleanLiteral(value: boolean): BabelNodeBooleanLiteral;
  declare function regExpLiteral(pattern: string, flags?: string): BabelNodeRegExpLiteral;
  declare function logicalExpression(operator: "||" | "&&" | "??", left: BabelNodeExpression, right: BabelNodeExpression): BabelNodeLogicalExpression;
  declare function memberExpression(object: BabelNodeExpression, property: any, computed?: boolean, optional?: true | false): BabelNodeMemberExpression;
  declare function newExpression(callee: BabelNodeExpression, _arguments: Array<BabelNodeExpression | BabelNodeSpreadElement | BabelNodeJSXNamespacedName>, optional?: true | false, typeParameters?: BabelNodeTypeParameterInstantiation | BabelNodeTSTypeParameterInstantiation): BabelNodeNewExpression;
  declare function program(body: Array<BabelNodeStatement>, directives?: Array<BabelNodeDirective>, sourceType?: "script" | "module", sourceFile?: string): BabelNodeProgram;
  declare function objectExpression(properties: Array<BabelNodeObjectMethod | BabelNodeObjectProperty | BabelNodeSpreadElement>): BabelNodeObjectExpression;
  declare function objectMethod(kind?: "method" | "get" | "set", key: any, params: Array<BabelNodeLVal>, body: BabelNodeBlockStatement, computed?: boolean, async?: boolean, decorators?: Array<BabelNodeDecorator>, generator?: boolean, returnType?: BabelNodeTypeAnnotation | BabelNodeTSTypeAnnotation | BabelNodeNoop, typeParameters?: BabelNodeTypeParameterDeclaration | BabelNodeTSTypeParameterDeclaration | BabelNodeNoop): BabelNodeObjectMethod;
  declare function objectProperty(key: any, value: BabelNodeExpression | BabelNodePatternLike, computed?: boolean, shorthand?: boolean, decorators?: Array<BabelNodeDecorator>): BabelNodeObjectProperty;
  declare function restElement(argument: BabelNodeLVal, decorators?: Array<BabelNodeDecorator>, typeAnnotation?: BabelNodeTypeAnnotation | BabelNodeTSTypeAnnotation | BabelNodeNoop): BabelNodeRestElement;
  declare function returnStatement(argument?: BabelNodeExpression): BabelNodeReturnStatement;
  declare function sequenceExpression(expressions: Array<BabelNodeExpression>): BabelNodeSequenceExpression;
  declare function switchCase(test?: BabelNodeExpression, consequent: Array<BabelNodeStatement>): BabelNodeSwitchCase;
  declare function switchStatement(discriminant: BabelNodeExpression, cases: Array<BabelNodeSwitchCase>): BabelNodeSwitchStatement;
  declare function thisExpression(): BabelNodeThisExpression;
  declare function throwStatement(argument: BabelNodeExpression): BabelNodeThrowStatement;
  declare function tryStatement(block: BabelNodeBlockStatement, handler?: BabelNodeCatchClause, finalizer?: BabelNodeBlockStatement): BabelNodeTryStatement;
  declare function unaryExpression(operator: "void" | "throw" | "delete" | "!" | "+" | "-" | "~" | "typeof", argument: BabelNodeExpression, prefix?: boolean): BabelNodeUnaryExpression;
  declare function updateExpression(operator: "++" | "--", argument: BabelNodeExpression, prefix?: boolean): BabelNodeUpdateExpression;
  declare function variableDeclaration(kind: "var" | "let" | "const", declarations: Array<BabelNodeVariableDeclarator>, declare?: boolean): BabelNodeVariableDeclaration;
  declare function variableDeclarator(id: BabelNodeLVal, init?: BabelNodeExpression, definite?: boolean): BabelNodeVariableDeclarator;
  declare function whileStatement(test: BabelNodeExpression, body: BabelNodeBlockStatement | BabelNodeStatement): BabelNodeWhileStatement;
  declare function withStatement(object: BabelNodeExpression, body: BabelNodeBlockStatement | BabelNodeStatement): BabelNodeWithStatement;
  declare function assignmentPattern(left: BabelNodeIdentifier | BabelNodeObjectPattern | BabelNodeArrayPattern, right: BabelNodeExpression, decorators?: Array<BabelNodeDecorator>, typeAnnotation?: BabelNodeTypeAnnotation | BabelNodeTSTypeAnnotation | BabelNodeNoop): BabelNodeAssignmentPattern;
  declare function arrayPattern(elements: Array<BabelNodePatternLike>, decorators?: Array<BabelNodeDecorator>, typeAnnotation?: BabelNodeTypeAnnotation | BabelNodeTSTypeAnnotation | BabelNodeNoop): BabelNodeArrayPattern;
  declare function arrowFunctionExpression(params: Array<BabelNodeLVal>, body: BabelNodeBlockStatement | BabelNodeExpression, async?: boolean, expression?: boolean, generator?: boolean, returnType?: BabelNodeTypeAnnotation | BabelNodeTSTypeAnnotation | BabelNodeNoop, typeParameters?: BabelNodeTypeParameterDeclaration | BabelNodeTSTypeParameterDeclaration | BabelNodeNoop): BabelNodeArrowFunctionExpression;
  declare function classBody(body: Array<BabelNodeClassMethod | BabelNodeClassProperty | BabelNodeTSDeclareMethod | BabelNodeTSIndexSignature>): BabelNodeClassBody;
  declare function classDeclaration(id?: BabelNodeIdentifier, superClass?: BabelNodeExpression, body: BabelNodeClassBody, decorators?: Array<BabelNodeDecorator>, abstract?: boolean, declare?: boolean, _implements?: Array<BabelNodeTSExpressionWithTypeArguments | BabelNodeClassImplements>, mixins?: any, superTypeParameters?: BabelNodeTypeParameterInstantiation | BabelNodeTSTypeParameterInstantiation, typeParameters?: BabelNodeTypeParameterDeclaration | BabelNodeTSTypeParameterDeclaration | BabelNodeNoop): BabelNodeClassDeclaration;
  declare function classExpression(id?: BabelNodeIdentifier, superClass?: BabelNodeExpression, body: BabelNodeClassBody, decorators?: Array<BabelNodeDecorator>, _implements?: Array<BabelNodeTSExpressionWithTypeArguments | BabelNodeClassImplements>, mixins?: any, superTypeParameters?: BabelNodeTypeParameterInstantiation | BabelNodeTSTypeParameterInstantiation, typeParameters?: BabelNodeTypeParameterDeclaration | BabelNodeTSTypeParameterDeclaration | BabelNodeNoop): BabelNodeClassExpression;
  declare function exportAllDeclaration(source: BabelNodeStringLiteral): BabelNodeExportAllDeclaration;
  declare function exportDefaultDeclaration(declaration: BabelNodeFunctionDeclaration | BabelNodeTSDeclareFunction | BabelNodeClassDeclaration | BabelNodeExpression): BabelNodeExportDefaultDeclaration;
  declare function exportNamedDeclaration(declaration?: BabelNodeDeclaration, specifiers: Array<BabelNodeExportSpecifier | BabelNodeExportDefaultSpecifier | BabelNodeExportNamespaceSpecifier>, source?: BabelNodeStringLiteral): BabelNodeExportNamedDeclaration;
  declare function exportSpecifier(local: BabelNodeIdentifier, exported: BabelNodeIdentifier): BabelNodeExportSpecifier;
  declare function forOfStatement(left: BabelNodeVariableDeclaration | BabelNodeLVal, right: BabelNodeExpression, body: BabelNodeStatement, _await?: boolean): BabelNodeForOfStatement;
  declare function importDeclaration(specifiers: Array<BabelNodeImportSpecifier | BabelNodeImportDefaultSpecifier | BabelNodeImportNamespaceSpecifier>, source: BabelNodeStringLiteral): BabelNodeImportDeclaration;
  declare function importDefaultSpecifier(local: BabelNodeIdentifier): BabelNodeImportDefaultSpecifier;
  declare function importNamespaceSpecifier(local: BabelNodeIdentifier): BabelNodeImportNamespaceSpecifier;
  declare function importSpecifier(local: BabelNodeIdentifier, imported: BabelNodeIdentifier, importKind?: null | "type" | "typeof"): BabelNodeImportSpecifier;
  declare function metaProperty(meta: BabelNodeIdentifier, property: BabelNodeIdentifier): BabelNodeMetaProperty;
  declare function classMethod(kind?: "get" | "set" | "method" | "constructor", key: BabelNodeIdentifier | BabelNodeStringLiteral | BabelNodeNumericLiteral | BabelNodeExpression, params: Array<BabelNodeLVal>, body: BabelNodeBlockStatement, computed?: boolean, _static?: boolean, abstract?: boolean, access?: "public" | "private" | "protected", accessibility?: "public" | "private" | "protected", async?: boolean, decorators?: Array<BabelNodeDecorator>, generator?: boolean, optional?: boolean, returnType?: BabelNodeTypeAnnotation | BabelNodeTSTypeAnnotation | BabelNodeNoop, typeParameters?: BabelNodeTypeParameterDeclaration | BabelNodeTSTypeParameterDeclaration | BabelNodeNoop): BabelNodeClassMethod;
  declare function objectPattern(properties: Array<BabelNodeRestElement | BabelNodeObjectProperty>, decorators?: Array<BabelNodeDecorator>, typeAnnotation?: BabelNodeTypeAnnotation | BabelNodeTSTypeAnnotation | BabelNodeNoop): BabelNodeObjectPattern;
  declare function spreadElement(argument: BabelNodeExpression): BabelNodeSpreadElement;
  declare function taggedTemplateExpression(tag: BabelNodeExpression, quasi: BabelNodeTemplateLiteral): BabelNodeTaggedTemplateExpression;
  declare function templateElement(value: any, tail?: boolean): BabelNodeTemplateElement;
  declare function templateLiteral(quasis: Array<BabelNodeTemplateElement>, expressions: Array<BabelNodeExpression>): BabelNodeTemplateLiteral;
  declare function yieldExpression(argument?: BabelNodeExpression, delegate?: boolean): BabelNodeYieldExpression;
  declare function anyTypeAnnotation(): BabelNodeAnyTypeAnnotation;
  declare function arrayTypeAnnotation(elementType: BabelNodeFlowType): BabelNodeArrayTypeAnnotation;
  declare function booleanTypeAnnotation(): BabelNodeBooleanTypeAnnotation;
  declare function booleanLiteralTypeAnnotation(value?: boolean): BabelNodeBooleanLiteralTypeAnnotation;
  declare function nullLiteralTypeAnnotation(): BabelNodeNullLiteralTypeAnnotation;
  declare function classImplements(id: BabelNodeIdentifier, typeParameters?: BabelNodeTypeParameterInstantiation): BabelNodeClassImplements;
  declare function declareClass(id: BabelNodeIdentifier, typeParameters?: BabelNodeTypeParameterInstantiation, _extends?: Array<BabelNodeInterfaceExtends>, body: BabelNodeObjectTypeAnnotation, mixins?: Array<BabelNodeInterfaceExtends>): BabelNodeDeclareClass;
  declare function declareFunction(id: BabelNodeIdentifier, predicate?: BabelNodeDeclaredPredicate): BabelNodeDeclareFunction;
  declare function declareInterface(id: BabelNodeIdentifier, typeParameters?: BabelNodeTypeParameterDeclaration, _extends?: BabelNodeInterfaceExtends, body: BabelNodeObjectTypeAnnotation, mixins?: Array<BabelNodeFlow>): BabelNodeDeclareInterface;
  declare function declareModule(id: BabelNodeIdentifier | BabelNodeStringLiteral, body: BabelNodeBlockStatement, kind?: "CommonJS" | "ES"): BabelNodeDeclareModule;
  declare function declareModuleExports(typeAnnotation: BabelNodeTypeAnnotation): BabelNodeDeclareModuleExports;
  declare function declareTypeAlias(id: BabelNodeIdentifier, typeParameters?: BabelNodeTypeParameterDeclaration, right: BabelNodeFlowType): BabelNodeDeclareTypeAlias;
  declare function declareOpaqueType(id: BabelNodeIdentifier, typeParameters?: BabelNodeTypeParameterDeclaration, supertype?: BabelNodeFlowType): BabelNodeDeclareOpaqueType;
  declare function declareVariable(id: BabelNodeIdentifier): BabelNodeDeclareVariable;
  declare function declareExportDeclaration(declaration?: BabelNodeFlow, specifiers?: Array<BabelNodeExportSpecifier | BabelNodeExportNamespaceSpecifier>, source?: BabelNodeStringLiteral, _default?: boolean): BabelNodeDeclareExportDeclaration;
  declare function declareExportAllDeclaration(source: BabelNodeStringLiteral, exportKind?: ["type","value"]): BabelNodeDeclareExportAllDeclaration;
  declare function declaredPredicate(value: BabelNodeFlow): BabelNodeDeclaredPredicate;
  declare function existsTypeAnnotation(): BabelNodeExistsTypeAnnotation;
  declare function functionTypeAnnotation(typeParameters?: BabelNodeTypeParameterDeclaration, params: Array<BabelNodeFunctionTypeParam>, rest?: BabelNodeFunctionTypeParam, returnType: BabelNodeFlowType): BabelNodeFunctionTypeAnnotation;
  declare function functionTypeParam(name?: BabelNodeIdentifier, typeAnnotation: BabelNodeFlowType, optional?: boolean): BabelNodeFunctionTypeParam;
  declare function genericTypeAnnotation(id: BabelNodeIdentifier, typeParameters?: BabelNodeTypeParameterInstantiation): BabelNodeGenericTypeAnnotation;
  declare function inferredPredicate(): BabelNodeInferredPredicate;
  declare function interfaceExtends(id: BabelNodeIdentifier, typeParameters?: BabelNodeTypeParameterInstantiation): BabelNodeInterfaceExtends;
  declare function interfaceDeclaration(id: BabelNodeIdentifier, typeParameters?: BabelNodeTypeParameterDeclaration, _extends: Array<BabelNodeInterfaceExtends>, body: BabelNodeObjectTypeAnnotation, mixins?: Array<BabelNodeInterfaceExtends>): BabelNodeInterfaceDeclaration;
  declare function intersectionTypeAnnotation(types: Array<BabelNodeFlowType>): BabelNodeIntersectionTypeAnnotation;
  declare function mixedTypeAnnotation(): BabelNodeMixedTypeAnnotation;
  declare function emptyTypeAnnotation(): BabelNodeEmptyTypeAnnotation;
  declare function nullableTypeAnnotation(typeAnnotation: BabelNodeFlowType): BabelNodeNullableTypeAnnotation;
  declare function numberLiteralTypeAnnotation(value?: number): BabelNodeNumberLiteralTypeAnnotation;
  declare function numberTypeAnnotation(): BabelNodeNumberTypeAnnotation;
  declare function objectTypeAnnotation(properties: Array<BabelNodeObjectTypeProperty | BabelNodeObjectTypeSpreadProperty>, indexers?: Array<BabelNodeObjectTypeIndexer>, callProperties?: Array<BabelNodeObjectTypeCallProperty>, exact?: boolean): BabelNodeObjectTypeAnnotation;
  declare function objectTypeCallProperty(value: BabelNodeFlowType, _static?: boolean): BabelNodeObjectTypeCallProperty;
  declare function objectTypeIndexer(id?: BabelNodeIdentifier, key: BabelNodeFlowType, value: BabelNodeFlowType, variance?: BabelNodeVariance, _static?: boolean): BabelNodeObjectTypeIndexer;
  declare function objectTypeProperty(key: BabelNodeIdentifier | BabelNodeStringLiteral, value: BabelNodeFlowType, variance?: BabelNodeVariance, kind?: "init" | "get" | "set", optional?: boolean, _static?: boolean): BabelNodeObjectTypeProperty;
  declare function objectTypeSpreadProperty(argument: BabelNodeFlowType): BabelNodeObjectTypeSpreadProperty;
  declare function opaqueType(id: BabelNodeIdentifier, typeParameters?: BabelNodeTypeParameterDeclaration, supertype?: BabelNodeFlowType, impltype: BabelNodeFlowType): BabelNodeOpaqueType;
  declare function qualifiedTypeIdentifier(id: BabelNodeIdentifier, qualification: BabelNodeIdentifier | BabelNodeQualifiedTypeIdentifier): BabelNodeQualifiedTypeIdentifier;
  declare function stringLiteralTypeAnnotation(value?: string): BabelNodeStringLiteralTypeAnnotation;
  declare function stringTypeAnnotation(): BabelNodeStringTypeAnnotation;
  declare function thisTypeAnnotation(): BabelNodeThisTypeAnnotation;
  declare function tupleTypeAnnotation(types: Array<BabelNodeFlowType>): BabelNodeTupleTypeAnnotation;
  declare function typeofTypeAnnotation(argument: BabelNodeFlowType): BabelNodeTypeofTypeAnnotation;
  declare function typeAlias(id: BabelNodeIdentifier, typeParameters?: BabelNodeTypeParameterDeclaration, right: BabelNodeFlowType): BabelNodeTypeAlias;
  declare function typeAnnotation(typeAnnotation: BabelNodeFlowType): BabelNodeTypeAnnotation;
  declare function typeCastExpression(expression: BabelNodeExpression, typeAnnotation: BabelNodeTypeAnnotation): BabelNodeTypeCastExpression;
  declare function typeParameter(bound?: BabelNodeTypeAnnotation, _default?: BabelNodeFlowType, variance?: BabelNodeVariance, name?: string): BabelNodeTypeParameter;
  declare function typeParameterDeclaration(params: Array<BabelNodeTypeParameter>): BabelNodeTypeParameterDeclaration;
  declare function typeParameterInstantiation(params: Array<BabelNodeFlowType>): BabelNodeTypeParameterInstantiation;
  declare function unionTypeAnnotation(types: Array<BabelNodeFlowType>): BabelNodeUnionTypeAnnotation;
  declare function variance(kind: "minus" | "plus"): BabelNodeVariance;
  declare function voidTypeAnnotation(): BabelNodeVoidTypeAnnotation;
  declare function jsxAttribute(name: BabelNodeJSXIdentifier | BabelNodeJSXNamespacedName, value?: BabelNodeJSXElement | BabelNodeJSXFragment | BabelNodeStringLiteral | BabelNodeJSXExpressionContainer): BabelNodeJSXAttribute;
  declare function jsxClosingElement(name: BabelNodeJSXIdentifier | BabelNodeJSXMemberExpression): BabelNodeJSXClosingElement;
  declare function jsxElement(openingElement: BabelNodeJSXOpeningElement, closingElement?: BabelNodeJSXClosingElement, children: Array<BabelNodeJSXText | BabelNodeJSXExpressionContainer | BabelNodeJSXSpreadChild | BabelNodeJSXElement | BabelNodeJSXFragment>, selfClosing: any): BabelNodeJSXElement;
  declare function jsxEmptyExpression(): BabelNodeJSXEmptyExpression;
  declare function jsxExpressionContainer(expression: BabelNodeExpression): BabelNodeJSXExpressionContainer;
  declare function jsxSpreadChild(expression: BabelNodeExpression): BabelNodeJSXSpreadChild;
  declare function jsxIdentifier(name: string): BabelNodeJSXIdentifier;
  declare function jsxMemberExpression(object: BabelNodeJSXMemberExpression | BabelNodeJSXIdentifier, property: BabelNodeJSXIdentifier): BabelNodeJSXMemberExpression;
  declare function jsxNamespacedName(namespace: BabelNodeJSXIdentifier, name: BabelNodeJSXIdentifier): BabelNodeJSXNamespacedName;
  declare function jsxOpeningElement(name: BabelNodeJSXIdentifier | BabelNodeJSXMemberExpression, attributes: Array<BabelNodeJSXAttribute | BabelNodeJSXSpreadAttribute>, selfClosing?: boolean): BabelNodeJSXOpeningElement;
  declare function jsxSpreadAttribute(argument: BabelNodeExpression): BabelNodeJSXSpreadAttribute;
  declare function jsxText(value: string): BabelNodeJSXText;
  declare function jsxFragment(openingFragment: BabelNodeJSXOpeningFragment, closingFragment: BabelNodeJSXClosingFragment, children: Array<BabelNodeJSXText | BabelNodeJSXExpressionContainer | BabelNodeJSXSpreadChild | BabelNodeJSXElement | BabelNodeJSXFragment>): BabelNodeJSXFragment;
  declare function jsxOpeningFragment(): BabelNodeJSXOpeningFragment;
  declare function jsxClosingFragment(): BabelNodeJSXClosingFragment;
  declare function noop(): BabelNodeNoop;
  declare function parenthesizedExpression(expression: BabelNodeExpression): BabelNodeParenthesizedExpression;
  declare function awaitExpression(argument: BabelNodeExpression): BabelNodeAwaitExpression;
  declare function bindExpression(object: any, callee: any): BabelNodeBindExpression;
  declare function classProperty(key: BabelNodeIdentifier | BabelNodeStringLiteral | BabelNodeNumericLiteral | BabelNodeExpression, value?: BabelNodeExpression, typeAnnotation?: BabelNodeTypeAnnotation | BabelNodeTSTypeAnnotation | BabelNodeNoop, decorators?: Array<BabelNodeDecorator>, computed?: boolean, abstract?: boolean, accessibility?: "public" | "private" | "protected", definite?: boolean, optional?: boolean, readonly?: boolean, _static?: boolean): BabelNodeClassProperty;
  declare function optionalMemberExpression(object: BabelNodeExpression, property: any, computed?: boolean, optional: boolean): BabelNodeOptionalMemberExpression;
  declare function optionalCallExpression(callee: BabelNodeExpression, _arguments: Array<BabelNodeExpression | BabelNodeSpreadElement | BabelNodeJSXNamespacedName>, optional: boolean, typeParameters?: BabelNodeTypeParameterInstantiation | BabelNodeTSTypeParameterInstantiation): BabelNodeOptionalCallExpression;
  declare function decorator(expression: BabelNodeExpression): BabelNodeDecorator;
  declare function doExpression(body: BabelNodeBlockStatement): BabelNodeDoExpression;
  declare function exportDefaultSpecifier(exported: BabelNodeIdentifier): BabelNodeExportDefaultSpecifier;
  declare function exportNamespaceSpecifier(exported: BabelNodeIdentifier): BabelNodeExportNamespaceSpecifier;
  declare function tsParameterProperty(parameter: BabelNodeIdentifier | BabelNodeAssignmentPattern, accessibility?: "public" | "private" | "protected", readonly?: boolean): BabelNodeTSParameterProperty;
  declare function tsDeclareFunction(id?: BabelNodeIdentifier, typeParameters?: BabelNodeTSTypeParameterDeclaration | BabelNodeNoop, params: Array<BabelNodeLVal>, returnType?: BabelNodeTSTypeAnnotation | BabelNodeNoop, async?: boolean, declare?: boolean, generator?: boolean): BabelNodeTSDeclareFunction;
  declare function tsDeclareMethod(decorators?: Array<BabelNodeDecorator>, key: BabelNodeIdentifier | BabelNodeStringLiteral | BabelNodeNumericLiteral | BabelNodeExpression, typeParameters?: BabelNodeTSTypeParameterDeclaration | BabelNodeNoop, params: Array<BabelNodeLVal>, returnType?: BabelNodeTSTypeAnnotation | BabelNodeNoop, abstract?: boolean, access?: "public" | "private" | "protected", accessibility?: "public" | "private" | "protected", async?: boolean, computed?: boolean, generator?: boolean, kind?: "get" | "set" | "method" | "constructor", optional?: boolean, _static?: boolean): BabelNodeTSDeclareMethod;
  declare function tsQualifiedName(left: BabelNodeTSEntityName, right: BabelNodeIdentifier): BabelNodeTSQualifiedName;
  declare function tsCallSignatureDeclaration(typeParameters?: BabelNodeTSTypeParameterDeclaration, parameters?: Array<BabelNodeIdentifier | BabelNodeRestElement>, typeAnnotation?: BabelNodeTSTypeAnnotation): BabelNodeTSCallSignatureDeclaration;
  declare function tsConstructSignatureDeclaration(typeParameters?: BabelNodeTSTypeParameterDeclaration, parameters?: Array<BabelNodeIdentifier | BabelNodeRestElement>, typeAnnotation?: BabelNodeTSTypeAnnotation): BabelNodeTSConstructSignatureDeclaration;
  declare function tsPropertySignature(key: BabelNodeExpression, typeAnnotation?: BabelNodeTSTypeAnnotation, initializer?: BabelNodeExpression, computed?: boolean, optional?: boolean, readonly?: boolean): BabelNodeTSPropertySignature;
  declare function tsMethodSignature(key: BabelNodeExpression, typeParameters?: BabelNodeTSTypeParameterDeclaration, parameters?: Array<BabelNodeIdentifier | BabelNodeRestElement>, typeAnnotation?: BabelNodeTSTypeAnnotation, computed?: boolean, optional?: boolean): BabelNodeTSMethodSignature;
  declare function tsIndexSignature(parameters: Array<BabelNodeIdentifier>, typeAnnotation?: BabelNodeTSTypeAnnotation, readonly?: boolean): BabelNodeTSIndexSignature;
  declare function tsAnyKeyword(): BabelNodeTSAnyKeyword;
  declare function tsNumberKeyword(): BabelNodeTSNumberKeyword;
  declare function tsObjectKeyword(): BabelNodeTSObjectKeyword;
  declare function tsBooleanKeyword(): BabelNodeTSBooleanKeyword;
  declare function tsStringKeyword(): BabelNodeTSStringKeyword;
  declare function tsSymbolKeyword(): BabelNodeTSSymbolKeyword;
  declare function tsVoidKeyword(): BabelNodeTSVoidKeyword;
  declare function tsUndefinedKeyword(): BabelNodeTSUndefinedKeyword;
  declare function tsNullKeyword(): BabelNodeTSNullKeyword;
  declare function tsNeverKeyword(): BabelNodeTSNeverKeyword;
  declare function tsThisType(): BabelNodeTSThisType;
  declare function tsFunctionType(typeParameters?: BabelNodeTSTypeParameterDeclaration, typeAnnotation?: BabelNodeTSTypeAnnotation, parameters?: Array<BabelNodeIdentifier | BabelNodeRestElement>): BabelNodeTSFunctionType;
  declare function tsConstructorType(typeParameters?: BabelNodeTSTypeParameterDeclaration, typeAnnotation?: BabelNodeTSTypeAnnotation, parameters?: Array<BabelNodeIdentifier | BabelNodeRestElement>): BabelNodeTSConstructorType;
  declare function tsTypeReference(typeName: BabelNodeTSEntityName, typeParameters?: BabelNodeTSTypeParameterInstantiation): BabelNodeTSTypeReference;
  declare function tsTypePredicate(parameterName: BabelNodeIdentifier | BabelNodeTSThisType, typeAnnotation: BabelNodeTSTypeAnnotation): BabelNodeTSTypePredicate;
  declare function tsTypeQuery(exprName: BabelNodeTSEntityName): BabelNodeTSTypeQuery;
  declare function tsTypeLiteral(members: Array<BabelNodeTSTypeElement>): BabelNodeTSTypeLiteral;
  declare function tsArrayType(elementType: BabelNodeTSType): BabelNodeTSArrayType;
  declare function tsTupleType(elementTypes: Array<BabelNodeTSType>): BabelNodeTSTupleType;
  declare function tsUnionType(types: Array<BabelNodeTSType>): BabelNodeTSUnionType;
  declare function tsIntersectionType(types: Array<BabelNodeTSType>): BabelNodeTSIntersectionType;
  declare function tsConditionalType(checkType: BabelNodeTSType, extendsType: BabelNodeTSType, trueType: BabelNodeTSType, falseType: BabelNodeTSType): BabelNodeTSConditionalType;
  declare function tsInferType(typeParameter: BabelNodeTSType): BabelNodeTSInferType;
  declare function tsParenthesizedType(typeAnnotation: BabelNodeTSType): BabelNodeTSParenthesizedType;
  declare function tsTypeOperator(typeAnnotation: BabelNodeTSType, operator?: string): BabelNodeTSTypeOperator;
  declare function tsIndexedAccessType(objectType: BabelNodeTSType, indexType: BabelNodeTSType): BabelNodeTSIndexedAccessType;
  declare function tsMappedType(typeParameter: BabelNodeTSTypeParameter, typeAnnotation?: BabelNodeTSType, optional?: boolean, readonly?: boolean): BabelNodeTSMappedType;
  declare function tsLiteralType(literal: BabelNodeNumericLiteral | BabelNodeStringLiteral | BabelNodeBooleanLiteral): BabelNodeTSLiteralType;
  declare function tsExpressionWithTypeArguments(expression: BabelNodeTSEntityName, typeParameters?: BabelNodeTSTypeParameterInstantiation): BabelNodeTSExpressionWithTypeArguments;
  declare function tsInterfaceDeclaration(id: BabelNodeIdentifier, typeParameters?: BabelNodeTSTypeParameterDeclaration, _extends?: Array<BabelNodeTSExpressionWithTypeArguments>, body: BabelNodeTSInterfaceBody, declare?: boolean): BabelNodeTSInterfaceDeclaration;
  declare function tsInterfaceBody(body: Array<BabelNodeTSTypeElement>): BabelNodeTSInterfaceBody;
  declare function tsTypeAliasDeclaration(id: BabelNodeIdentifier, typeParameters?: BabelNodeTSTypeParameterDeclaration, typeAnnotation: BabelNodeTSType, declare?: boolean): BabelNodeTSTypeAliasDeclaration;
  declare function tsAsExpression(expression: BabelNodeExpression, typeAnnotation: BabelNodeTSType): BabelNodeTSAsExpression;
  declare function tsTypeAssertion(typeAnnotation: BabelNodeTSType, expression: BabelNodeExpression): BabelNodeTSTypeAssertion;
  declare function tsEnumDeclaration(id: BabelNodeIdentifier, members: Array<BabelNodeTSEnumMember>, _const?: boolean, declare?: boolean, initializer?: BabelNodeExpression): BabelNodeTSEnumDeclaration;
  declare function tsEnumMember(id: BabelNodeIdentifier | BabelNodeStringLiteral, initializer?: BabelNodeExpression): BabelNodeTSEnumMember;
  declare function tsModuleDeclaration(id: BabelNodeIdentifier | BabelNodeStringLiteral, body: BabelNodeTSModuleBlock | BabelNodeTSModuleDeclaration, declare?: boolean, global?: boolean): BabelNodeTSModuleDeclaration;
  declare function tsModuleBlock(body: Array<BabelNodeStatement>): BabelNodeTSModuleBlock;
  declare function tsImportEqualsDeclaration(id: BabelNodeIdentifier, moduleReference: BabelNodeTSEntityName | BabelNodeTSExternalModuleReference, isExport?: boolean): BabelNodeTSImportEqualsDeclaration;
  declare function tsExternalModuleReference(expression: BabelNodeStringLiteral): BabelNodeTSExternalModuleReference;
  declare function tsNonNullExpression(expression: BabelNodeExpression): BabelNodeTSNonNullExpression;
  declare function tsExportAssignment(expression: BabelNodeExpression): BabelNodeTSExportAssignment;
  declare function tsNamespaceExportDeclaration(id: BabelNodeIdentifier): BabelNodeTSNamespaceExportDeclaration;
  declare function tsTypeAnnotation(typeAnnotation: BabelNodeTSType): BabelNodeTSTypeAnnotation;
  declare function tsTypeParameterInstantiation(params: Array<BabelNodeTSType>): BabelNodeTSTypeParameterInstantiation;
  declare function tsTypeParameterDeclaration(params: Array<BabelNodeTSTypeParameter>): BabelNodeTSTypeParameterDeclaration;
  declare function tsTypeParameter(constraint?: BabelNodeTSType, _default?: BabelNodeTSType, name?: string): BabelNodeTSTypeParameter;
  declare function isArrayExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeArrayExpression)
  declare function isAssignmentExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeAssignmentExpression)
  declare function isBinaryExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeBinaryExpression)
  declare function isDirective(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeDirective)
  declare function isDirectiveLiteral(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeDirectiveLiteral)
  declare function isBlockStatement(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeBlockStatement)
  declare function isBreakStatement(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeBreakStatement)
  declare function isCallExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeCallExpression)
  declare function isCatchClause(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeCatchClause)
  declare function isConditionalExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeConditionalExpression)
  declare function isContinueStatement(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeContinueStatement)
  declare function isDebuggerStatement(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeDebuggerStatement)
  declare function isDoWhileStatement(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeDoWhileStatement)
  declare function isEmptyStatement(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeEmptyStatement)
  declare function isExpressionStatement(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeExpressionStatement)
  declare function isFile(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeFile)
  declare function isForInStatement(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeForInStatement)
  declare function isForStatement(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeForStatement)
  declare function isFunctionDeclaration(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeFunctionDeclaration)
  declare function isFunctionExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeFunctionExpression)
  declare function isIdentifier(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeIdentifier)
  declare function isIfStatement(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeIfStatement)
  declare function isLabeledStatement(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeLabeledStatement)
  declare function isStringLiteral(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeStringLiteral)
  declare function isNumericLiteral(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeNumericLiteral)
  declare function isNullLiteral(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeNullLiteral)
  declare function isBooleanLiteral(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeBooleanLiteral)
  declare function isRegExpLiteral(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeRegExpLiteral)
  declare function isLogicalExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeLogicalExpression)
  declare function isMemberExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeMemberExpression)
  declare function isNewExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeNewExpression)
  declare function isProgram(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeProgram)
  declare function isObjectExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeObjectExpression)
  declare function isObjectMethod(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeObjectMethod)
  declare function isObjectProperty(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeObjectProperty)
  declare function isRestElement(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeRestElement)
  declare function isReturnStatement(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeReturnStatement)
  declare function isSequenceExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeSequenceExpression)
  declare function isSwitchCase(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeSwitchCase)
  declare function isSwitchStatement(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeSwitchStatement)
  declare function isThisExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeThisExpression)
  declare function isThrowStatement(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeThrowStatement)
  declare function isTryStatement(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTryStatement)
  declare function isUnaryExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeUnaryExpression)
  declare function isUpdateExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeUpdateExpression)
  declare function isVariableDeclaration(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeVariableDeclaration)
  declare function isVariableDeclarator(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeVariableDeclarator)
  declare function isWhileStatement(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeWhileStatement)
  declare function isWithStatement(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeWithStatement)
  declare function isAssignmentPattern(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeAssignmentPattern)
  declare function isArrayPattern(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeArrayPattern)
  declare function isArrowFunctionExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeArrowFunctionExpression)
  declare function isClassBody(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeClassBody)
  declare function isClassDeclaration(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeClassDeclaration)
  declare function isClassExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeClassExpression)
  declare function isExportAllDeclaration(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeExportAllDeclaration)
  declare function isExportDefaultDeclaration(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeExportDefaultDeclaration)
  declare function isExportNamedDeclaration(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeExportNamedDeclaration)
  declare function isExportSpecifier(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeExportSpecifier)
  declare function isForOfStatement(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeForOfStatement)
  declare function isImportDeclaration(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeImportDeclaration)
  declare function isImportDefaultSpecifier(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeImportDefaultSpecifier)
  declare function isImportNamespaceSpecifier(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeImportNamespaceSpecifier)
  declare function isImportSpecifier(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeImportSpecifier)
  declare function isMetaProperty(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeMetaProperty)
  declare function isClassMethod(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeClassMethod)
  declare function isObjectPattern(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeObjectPattern)
  declare function isSpreadElement(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeSpreadElement)
  declare function isSuper(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeSuper)
  declare function isTaggedTemplateExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTaggedTemplateExpression)
  declare function isTemplateElement(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTemplateElement)
  declare function isTemplateLiteral(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTemplateLiteral)
  declare function isYieldExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeYieldExpression)
  declare function isAnyTypeAnnotation(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeAnyTypeAnnotation)
  declare function isArrayTypeAnnotation(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeArrayTypeAnnotation)
  declare function isBooleanTypeAnnotation(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeBooleanTypeAnnotation)
  declare function isBooleanLiteralTypeAnnotation(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeBooleanLiteralTypeAnnotation)
  declare function isNullLiteralTypeAnnotation(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeNullLiteralTypeAnnotation)
  declare function isClassImplements(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeClassImplements)
  declare function isDeclareClass(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeDeclareClass)
  declare function isDeclareFunction(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeDeclareFunction)
  declare function isDeclareInterface(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeDeclareInterface)
  declare function isDeclareModule(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeDeclareModule)
  declare function isDeclareModuleExports(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeDeclareModuleExports)
  declare function isDeclareTypeAlias(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeDeclareTypeAlias)
  declare function isDeclareOpaqueType(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeDeclareOpaqueType)
  declare function isDeclareVariable(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeDeclareVariable)
  declare function isDeclareExportDeclaration(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeDeclareExportDeclaration)
  declare function isDeclareExportAllDeclaration(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeDeclareExportAllDeclaration)
  declare function isDeclaredPredicate(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeDeclaredPredicate)
  declare function isExistsTypeAnnotation(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeExistsTypeAnnotation)
  declare function isFunctionTypeAnnotation(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeFunctionTypeAnnotation)
  declare function isFunctionTypeParam(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeFunctionTypeParam)
  declare function isGenericTypeAnnotation(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeGenericTypeAnnotation)
  declare function isInferredPredicate(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeInferredPredicate)
  declare function isInterfaceExtends(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeInterfaceExtends)
  declare function isInterfaceDeclaration(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeInterfaceDeclaration)
  declare function isIntersectionTypeAnnotation(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeIntersectionTypeAnnotation)
  declare function isMixedTypeAnnotation(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeMixedTypeAnnotation)
  declare function isEmptyTypeAnnotation(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeEmptyTypeAnnotation)
  declare function isNullableTypeAnnotation(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeNullableTypeAnnotation)
  declare function isNumberLiteralTypeAnnotation(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeNumberLiteralTypeAnnotation)
  declare function isNumberTypeAnnotation(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeNumberTypeAnnotation)
  declare function isObjectTypeAnnotation(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeObjectTypeAnnotation)
  declare function isObjectTypeCallProperty(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeObjectTypeCallProperty)
  declare function isObjectTypeIndexer(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeObjectTypeIndexer)
  declare function isObjectTypeProperty(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeObjectTypeProperty)
  declare function isObjectTypeSpreadProperty(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeObjectTypeSpreadProperty)
  declare function isOpaqueType(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeOpaqueType)
  declare function isQualifiedTypeIdentifier(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeQualifiedTypeIdentifier)
  declare function isStringLiteralTypeAnnotation(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeStringLiteralTypeAnnotation)
  declare function isStringTypeAnnotation(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeStringTypeAnnotation)
  declare function isThisTypeAnnotation(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeThisTypeAnnotation)
  declare function isTupleTypeAnnotation(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTupleTypeAnnotation)
  declare function isTypeofTypeAnnotation(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTypeofTypeAnnotation)
  declare function isTypeAlias(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTypeAlias)
  declare function isTypeAnnotation(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTypeAnnotation)
  declare function isTypeCastExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTypeCastExpression)
  declare function isTypeParameter(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTypeParameter)
  declare function isTypeParameterDeclaration(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTypeParameterDeclaration)
  declare function isTypeParameterInstantiation(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTypeParameterInstantiation)
  declare function isUnionTypeAnnotation(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeUnionTypeAnnotation)
  declare function isVariance(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeVariance)
  declare function isVoidTypeAnnotation(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeVoidTypeAnnotation)
  declare function isJSXAttribute(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeJSXAttribute)
  declare function isJSXClosingElement(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeJSXClosingElement)
  declare function isJSXElement(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeJSXElement)
  declare function isJSXEmptyExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeJSXEmptyExpression)
  declare function isJSXExpressionContainer(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeJSXExpressionContainer)
  declare function isJSXSpreadChild(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeJSXSpreadChild)
  declare function isJSXIdentifier(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeJSXIdentifier)
  declare function isJSXMemberExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeJSXMemberExpression)
  declare function isJSXNamespacedName(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeJSXNamespacedName)
  declare function isJSXOpeningElement(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeJSXOpeningElement)
  declare function isJSXSpreadAttribute(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeJSXSpreadAttribute)
  declare function isJSXText(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeJSXText)
  declare function isJSXFragment(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeJSXFragment)
  declare function isJSXOpeningFragment(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeJSXOpeningFragment)
  declare function isJSXClosingFragment(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeJSXClosingFragment)
  declare function isNoop(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeNoop)
  declare function isParenthesizedExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeParenthesizedExpression)
  declare function isAwaitExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeAwaitExpression)
  declare function isBindExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeBindExpression)
  declare function isClassProperty(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeClassProperty)
  declare function isOptionalMemberExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeOptionalMemberExpression)
  declare function isOptionalCallExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeOptionalCallExpression)
  declare function isImport(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeImport)
  declare function isDecorator(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeDecorator)
  declare function isDoExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeDoExpression)
  declare function isExportDefaultSpecifier(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeExportDefaultSpecifier)
  declare function isExportNamespaceSpecifier(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeExportNamespaceSpecifier)
  declare function isTSParameterProperty(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSParameterProperty)
  declare function isTSDeclareFunction(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSDeclareFunction)
  declare function isTSDeclareMethod(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSDeclareMethod)
  declare function isTSQualifiedName(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSQualifiedName)
  declare function isTSCallSignatureDeclaration(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSCallSignatureDeclaration)
  declare function isTSConstructSignatureDeclaration(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSConstructSignatureDeclaration)
  declare function isTSPropertySignature(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSPropertySignature)
  declare function isTSMethodSignature(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSMethodSignature)
  declare function isTSIndexSignature(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSIndexSignature)
  declare function isTSAnyKeyword(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSAnyKeyword)
  declare function isTSNumberKeyword(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSNumberKeyword)
  declare function isTSObjectKeyword(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSObjectKeyword)
  declare function isTSBooleanKeyword(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSBooleanKeyword)
  declare function isTSStringKeyword(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSStringKeyword)
  declare function isTSSymbolKeyword(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSSymbolKeyword)
  declare function isTSVoidKeyword(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSVoidKeyword)
  declare function isTSUndefinedKeyword(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSUndefinedKeyword)
  declare function isTSNullKeyword(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSNullKeyword)
  declare function isTSNeverKeyword(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSNeverKeyword)
  declare function isTSThisType(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSThisType)
  declare function isTSFunctionType(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSFunctionType)
  declare function isTSConstructorType(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSConstructorType)
  declare function isTSTypeReference(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSTypeReference)
  declare function isTSTypePredicate(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSTypePredicate)
  declare function isTSTypeQuery(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSTypeQuery)
  declare function isTSTypeLiteral(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSTypeLiteral)
  declare function isTSArrayType(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSArrayType)
  declare function isTSTupleType(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSTupleType)
  declare function isTSUnionType(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSUnionType)
  declare function isTSIntersectionType(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSIntersectionType)
  declare function isTSConditionalType(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSConditionalType)
  declare function isTSInferType(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSInferType)
  declare function isTSParenthesizedType(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSParenthesizedType)
  declare function isTSTypeOperator(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSTypeOperator)
  declare function isTSIndexedAccessType(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSIndexedAccessType)
  declare function isTSMappedType(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSMappedType)
  declare function isTSLiteralType(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSLiteralType)
  declare function isTSExpressionWithTypeArguments(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSExpressionWithTypeArguments)
  declare function isTSInterfaceDeclaration(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSInterfaceDeclaration)
  declare function isTSInterfaceBody(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSInterfaceBody)
  declare function isTSTypeAliasDeclaration(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSTypeAliasDeclaration)
  declare function isTSAsExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSAsExpression)
  declare function isTSTypeAssertion(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSTypeAssertion)
  declare function isTSEnumDeclaration(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSEnumDeclaration)
  declare function isTSEnumMember(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSEnumMember)
  declare function isTSModuleDeclaration(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSModuleDeclaration)
  declare function isTSModuleBlock(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSModuleBlock)
  declare function isTSImportEqualsDeclaration(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSImportEqualsDeclaration)
  declare function isTSExternalModuleReference(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSExternalModuleReference)
  declare function isTSNonNullExpression(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSNonNullExpression)
  declare function isTSExportAssignment(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSExportAssignment)
  declare function isTSNamespaceExportDeclaration(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSNamespaceExportDeclaration)
  declare function isTSTypeAnnotation(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSTypeAnnotation)
  declare function isTSTypeParameterInstantiation(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSTypeParameterInstantiation)
  declare function isTSTypeParameterDeclaration(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSTypeParameterDeclaration)
  declare function isTSTypeParameter(node: Object, opts?: ?Object): boolean %checks (node instanceof BabelNodeTSTypeParameter)
  declare function isExpression(node: Object, opts?: ?Object): boolean
  declare function isBinary(node: Object, opts?: ?Object): boolean
  declare function isScopable(node: Object, opts?: ?Object): boolean
  declare function isBlockParent(node: Object, opts?: ?Object): boolean
  declare function isBlock(node: Object, opts?: ?Object): boolean
  declare function isStatement(node: Object, opts?: ?Object): boolean
  declare function isTerminatorless(node: Object, opts?: ?Object): boolean
  declare function isCompletionStatement(node: Object, opts?: ?Object): boolean
  declare function isConditional(node: Object, opts?: ?Object): boolean
  declare function isLoop(node: Object, opts?: ?Object): boolean
  declare function isWhile(node: Object, opts?: ?Object): boolean
  declare function isExpressionWrapper(node: Object, opts?: ?Object): boolean
  declare function isFor(node: Object, opts?: ?Object): boolean
  declare function isForXStatement(node: Object, opts?: ?Object): boolean
  declare function isFunction(node: Object, opts?: ?Object): boolean
  declare function isFunctionParent(node: Object, opts?: ?Object): boolean
  declare function isPureish(node: Object, opts?: ?Object): boolean
  declare function isDeclaration(node: Object, opts?: ?Object): boolean
  declare function isPatternLike(node: Object, opts?: ?Object): boolean
  declare function isLVal(node: Object, opts?: ?Object): boolean
  declare function isTSEntityName(node: Object, opts?: ?Object): boolean
  declare function isLiteral(node: Object, opts?: ?Object): boolean
  declare function isImmutable(node: Object, opts?: ?Object): boolean
  declare function isUserWhitespacable(node: Object, opts?: ?Object): boolean
  declare function isMethod(node: Object, opts?: ?Object): boolean
  declare function isObjectMember(node: Object, opts?: ?Object): boolean
  declare function isProperty(node: Object, opts?: ?Object): boolean
  declare function isUnaryLike(node: Object, opts?: ?Object): boolean
  declare function isPattern(node: Object, opts?: ?Object): boolean
  declare function isClass(node: Object, opts?: ?Object): boolean
  declare function isModuleDeclaration(node: Object, opts?: ?Object): boolean
  declare function isExportDeclaration(node: Object, opts?: ?Object): boolean
  declare function isModuleSpecifier(node: Object, opts?: ?Object): boolean
  declare function isFlow(node: Object, opts?: ?Object): boolean
  declare function isFlowType(node: Object, opts?: ?Object): boolean
  declare function isFlowBaseAnnotation(node: Object, opts?: ?Object): boolean
  declare function isFlowDeclaration(node: Object, opts?: ?Object): boolean
  declare function isFlowPredicate(node: Object, opts?: ?Object): boolean
  declare function isJSX(node: Object, opts?: ?Object): boolean
  declare function isTSTypeElement(node: Object, opts?: ?Object): boolean
  declare function isTSType(node: Object, opts?: ?Object): boolean
  declare function isNumberLiteral(node: Object, opts?: ?Object): boolean
  declare function isRegexLiteral(node: Object, opts?: ?Object): boolean
  declare function isRestProperty(node: Object, opts?: ?Object): boolean
  declare function isSpreadProperty(node: Object, opts?: ?Object): boolean
  declare function validate(n: BabelNode, key: string, value: mixed): void;
  declare function clone<T>(n: T): T;
  declare function cloneDeep<T>(n: T): T;
  declare function removeProperties<T>(n: T, opts: ?{}): void;
  declare function removePropertiesDeep<T>(n: T, opts: ?{}): T;
  declare type TraversalAncestors = Array<{
    node: BabelNode,
    key: string,
    index?: number,
  }>;
  declare type TraversalHandler<T> = (BabelNode, TraversalAncestors, T) => void;
  declare type TraversalHandlers<T> = {
    enter?: TraversalHandler<T>,
    exit?: TraversalHandler<T>,
  };
  declare function traverse<T>(n: BabelNode, TraversalHandler<T> | TraversalHandlers<T>, state?: T): void;
}