subclass from MutableSequence

bitarray/__init__.pyi

@@ -1,4 +1,5 @@
-from typing import Any, BinaryIO, Iterable, Optional, Union, overload
+from typing import (Any, BinaryIO, Iterable, MutableSequence, Optional,
+                    Union, overload)
 from typing_extensions import Literal
 
 
@@ -12,7 +13,7 @@ class decodetree:
     def todict(self) -> Codedict: ...
 
 
-class bitarray:
+class bitarray(MutableSequence[Bool]):
     def __init__(self, initializer: Union[int, str, Iterable, None]=0,
                  endian: str=..., /) -> None: ...
     def all(self) -> bool: ...
@@ -58,14 +59,15 @@ class bitarray:
     def __getitem__(self, i: int) -> Bool: ...
     @overload
     def __getitem__(self, s: slice) -> bitarray: ...
-    @overload
+    @overload  # type: ignore  # Overrides MutableSequence
     def __setitem__(self, i: Union[int, slice], o: Bool) -> None: ...
     @overload
     def __setitem__(self, s: slice, o: bitarray) -> None: ...
     def __delitem__(self, i: Union[int, slice]) -> None: ...
 
     def __add__(self, other: bitarray) -> bitarray: ...
-    def __iadd__(self, other: bitarray) -> bitarray: ...
+    def __iadd__(self, other: bitarray) -> bitarray: # type: ignore
+        ...  # Overrides MutableSequence
     def __mul__(self, n: int) -> bitarray: ...
     def __imul__(self, n: int) -> bitarray: ...
     def __rmul__(self, n: int) -> bitarray: ...