Use protocols from _typeshed

Author: srittau

stdlib/_operator.pyi

@@ -1,5 +1,5 @@
 import sys
-from _typeshed import SupportsGetItem
+from _typeshed import SupportsGetItem, SupportsMul, SupportsRMul
 from collections.abc import Callable, Container, Iterable, MutableMapping, MutableSequence, Sequence
 from operator import attrgetter as attrgetter, itemgetter as itemgetter, methodcaller as methodcaller
 from typing import Any, AnyStr, Protocol, SupportsAbs, SupportsIndex, TypeVar, overload, type_check_only
@@ -39,14 +39,6 @@ _SupportsComparison: TypeAlias = _SupportsDunderLE | _SupportsDunderGE | _Suppor
 class _SupportsInversion(Protocol[_T_co]):
     def __invert__(self) -> _T_co: ...
 
-@type_check_only
-class _SupportsMul(Protocol[_T_co, _T_contra]):
-    def __mul__(self, other: _T_contra, /) -> _T_co: ...
-
-@type_check_only
-class _SupportsRMul(Protocol[_T_co, _T_contra]):
-    def __rmul__(self, other: _T_contra, /) -> _T_co: ...
-
 @type_check_only
 class _SupportsNeg(Protocol[_T_co]):
     def __neg__(self) -> _T_co: ...
@@ -76,9 +68,9 @@ def invert(a: _SupportsInversion[_T_co], /) -> _T_co: ...
 def lshift(a, b, /): ...
 def mod(a, b, /): ...
 @overload
-def mul(a: _SupportsMul[_T_co, _T_contra], b: _T_contra, /) -> _T_co: ...
+def mul(a: SupportsMul[_T_contra, _T_co], b: _T_contra, /) -> _T_co: ...
 @overload
-def mul(a: _T_contra, b: _SupportsRMul[_T_co, _T_contra], /) -> _T_co: ...
+def mul(a: _T_contra, b: SupportsRMul[_T_contra, _T_co], /) -> _T_co: ...
 def matmul(a, b, /): ...
 def neg(a: _SupportsNeg[_T_co], /) -> _T_co: ...
 def or_(a, b, /): ...