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# Copyright: This module has been placed in the public domain.
# Author: Adam Turner
"""Private helpers for the ``typing`` module."""
from __future__ import annotations
TYPE_CHECKING = False
if TYPE_CHECKING:
import sys
from collections.abc import Callable
from typing import Any, Final, TypeVar, final, overload
if sys.version_info[:2] >= (3, 11):
from typing import Self
else:
from typing_extensions import Self # NoQA: F401
if sys.version_info[:2] >= (3, 12):
from typing import TypeAlias
else:
from typing_extensions import TypeAlias # NoQA: F401
_F = TypeVar("_F", bound=Callable[..., Any])
_T = TypeVar('_T')
else:
# Runtime replacement for ``typing.final``.
def final(f: _T) -> _T:
return f
def _overload_inner(*args, **kwds):
raise NotImplementedError
# Runtime replacement for ``typing.overload``.
def overload(func: _F) -> _F:
return _overload_inner
__all__: Final = ('final', 'overload')
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