1  import _weakrefset
   2  from typing import Any, Callable, Dict, Set, Tuple, Type, TypeVar
   3  
   4  _FuncT = TypeVar("_FuncT", bound=Callable[..., Any])
   5  
   6  # NOTE: mypy has special processing for ABCMeta and abstractmethod.
   7  
   8  def abstractmethod(funcobj: _FuncT) -> _FuncT: ...
   9  
  10  class ABCMeta(type):
  11      # TODO: FrozenSet
  12      __abstractmethods__: Set[Any]
  13      _abc_cache: _weakrefset.WeakSet[Any]
  14      _abc_invalidation_counter: int
  15      _abc_negative_cache: _weakrefset.WeakSet[Any]
  16      _abc_negative_cache_version: int
  17      _abc_registry: _weakrefset.WeakSet[Any]
  18      def __init__(self, name: str, bases: Tuple[type, ...], namespace: Dict[Any, Any]) -> None: ...
  19      def __instancecheck__(cls: ABCMeta, instance: Any) -> Any: ...
  20      def __subclasscheck__(cls: ABCMeta, subclass: Any) -> Any: ...
  21      def _dump_registry(cls: ABCMeta, *args: Any, **kwargs: Any) -> None: ...
  22      def register(cls: ABCMeta, subclass: Type[Any]) -> None: ...
  23  
  24  # TODO: The real abc.abstractproperty inherits from "property".
  25  class abstractproperty(object):
  26      def __new__(cls, func: Any) -> Any: ...
  27      __isabstractmethod__: bool
  28      doc: Any
  29      fdel: Any
  30      fget: Any
  31      fset: Any
  32