Addressed changes requested #15816 (review)

Author: p-vdp

stubs/geojson/@tests/stubtest_allowlist.txt

@@ -1,2 +1,3 @@
+# Stub missing OK, not part of public API
 geojson.factory
-geojson.examples.SimpleWebFeature.__geo_interface__
+geojson.examples

stubs/geojson/geojson/base.pyi

@@ -1,9 +1,9 @@
 from _typeshed import Incomplete
-from collections.abc import Sequence
+from collections.abc import Iterable
 from typing import Any
 
 class GeoJSON(dict[str, Any]):
-    def __init__(self, iterable: Sequence[Incomplete] = (), **extra) -> None: ...
+    def __init__(self, iterable: Iterable[tuple[str, Any]] = (), **extra) -> None: ...
     def __getattr__(self, name: str | int) -> Incomplete: ...
     def __setattr__(self, name: str, value) -> None: ...
     def __delattr__(self, name: str) -> None: ...

stubs/geojson/geojson/examples.pyi

@@ -21,7 +21,7 @@ class Geometry(GeoJSON):
     def clean_coordinates(cls, coords: Sequence[_InputCoord] | Geometry, precision: int) -> list[_CleanCoord]: ...
 
 class GeometryCollection(GeoJSON):
-    def __init__(self, geometries: None | Sequence[Geometry] = None, **extra) -> None: ...
+    def __init__(self, geometries: Sequence[Geometry] | None = None, **extra) -> None: ...
     def errors(self) -> list[str] | None: ...
     def __getitem__(self, key) -> Geometry | tuple[()] | None: ...