sig/validator.rbs in rbs-3.1.1 vs sig/validator.rbs in rbs-3.1.2

@@ -44,16 +44,16 @@
 
     # Validates class alias declaration
     #
     # - The right hand side can be normalized
     # - No mixing alias declaration between class and modules
-    # 
+    #
     def validate_class_alias: (entry: Environment::ClassAliasEntry | Environment::ModuleAliasEntry) -> void
 
     private
 
     # Resolves relative type names to absolute type names in given context.
     # Yields the type when the type name resolution using `#resolver` fails.
     #
-    def absolute_type: (Types::t, context: Resolver::context) { (Types::t) -> TypeName } -> Types::t
+    def absolute_type: (Types::t, context: Resolver::context) ?{ (Types::t) -> TypeName } -> Types::t
   end
 end