Merge pull request #47 from bryanforbes/improve-ext-asyncio-base

Improve `ext.asyncio.base`

Author: CaselIT

sqlalchemy-stubs/ext/asyncio/base.pyi

@@ -1,17 +1,23 @@
 import abc
 from typing import Any
+from typing import Generator
+from typing import TypeVar
+
+_TStartableContext = TypeVar("_TStartableContext", bound=StartableContext)
 
 class StartableContext(abc.ABC, metaclass=abc.ABCMeta):
     @abc.abstractmethod
-    async def start(self) -> StartableContext: ...
-    def __await__(self): ...
-    async def __aenter__(self): ...
+    async def start(self: _TStartableContext) -> _TStartableContext: ...
+    def __await__(
+        self: _TStartableContext,
+    ) -> Generator[Any, None, _TStartableContext]: ...
+    async def __aenter__(self: _TStartableContext) -> _TStartableContext: ...
     @abc.abstractmethod
     async def __aexit__(
         self, type_: Any, value: Any, traceback: Any
-    ) -> Any: ...
+    ) -> None: ...
 
 class ProxyComparable:
-    def __hash__(self) -> Any: ...
-    def __eq__(self, other: Any) -> Any: ...
-    def __ne__(self, other: Any) -> Any: ...
+    def __hash__(self) -> int: ...
+    def __eq__(self, other: Any) -> bool: ...
+    def __ne__(self, other: Any) -> bool: ...