More typing extensions impl

Author: schloerke

src/posit/connect/resources.py

@@ -6,11 +6,10 @@
 from dataclasses import dataclass
 from typing import TYPE_CHECKING, Any, Generic, List, Optional, Sequence, TypeVar, overload
 
-from typing_extensions import Self
-
 if TYPE_CHECKING:
     import requests
 
+    from ._typing_extensions import Self
     from .context import Context
     from .urls import Url
 
@@ -176,12 +175,12 @@ def __getitem__(self, index: slice) -> Sequence[T]: ...
     def __getitem__(self, index):
         return self._data[index]
 
-    def __iter__(self):
-        return iter(self._data)
-
     def __len__(self) -> int:
         return len(self._data)
 
+    def __iter__(self):
+        return iter(self._data)
+
     def __str__(self) -> str:
         return str(self._data)
 

src/posit/connect/vanities.py

@@ -1,7 +1,6 @@
-from typing import Callable, List, Optional, TypedDict
-
-from typing_extensions import NotRequired, Required, Unpack
+from typing import Callable, List, Optional
 
+from ._typing_extensions import NotRequired, Required, TypedDict, Unpack
 from .errors import ClientError
 from .resources import Resource, ResourceParameters, Resources