import type { ASTVisitor } from '../../language/visitor'; import type { ValidationContext } from '../ValidationContext'; /** * Variables are input types * * A GraphQL operation is only valid if all the variables it defines are of * input types (scalar, enum, or input object). * * See https://spec.graphql.org/draft/#sec-Variables-Are-Input-Types */ export declare function VariablesAreInputTypesRule( context: ValidationContext, ): ASTVisitor;