text: import warnings
  
  from .request import Request
  
  
  class _FakeSubclassCheck(type):
      def __subclasscheck__(cls, subclass):
          warnings.warn(
              "'BaseRequest' is deprecated and will be removed in"
              " Werkzeug version 2.1. Use 'issubclass(cls, Request)'"
              " instead.",
              DeprecationWarning,
              stacklevel=2,
          )
          return issubclass(subclass, Request)
  
      def __instancecheck__(cls, instance):
          warnings.warn(
              "'BaseRequest' is deprecated and will be removed in"
              " Werkzeug version 2.1. Use 'isinstance(obj, Request)'"
              " instead.",
              DeprecationWarning,
              stacklevel=2,
          )
          return isinstance(instance, Request)
  
  
  class BaseRequest(Request, metaclass=_FakeSubclassCheck):
      def __init__(self, *args, **kwargs):
          warnings.warn(
              "'BaseRequest' is deprecated and will be removed in"
              " Werkzeug version 2.1. 'Request' now includes the"
              " functionality directly.",
              DeprecationWarning,
              stacklevel=2,
          )
          super().__init__(*args, **kwargs)
  