code: def is_std_wstring(type_):
      
  
      if utils.is_str(type_):
          return type_ in wstring_equivalences
  
      type_ = remove_alias(type_)
      type_ = remove_reference(type_)
      type_ = remove_cv(type_)
      return type_.decl_string in wstring_equivalences
docs: Returns True, if type represents C++ `std::wstring`, False otherwise.