Move docs from stdtypes to inspect

Author: msullivan

Doc/builtins/stdtypes.rst

@@ -1238,14 +1238,6 @@ the underlying generator function:
    that does nothing.
 
 
-The awaitables returned by :meth:`~agen.asend`, :meth:`~agen.athrow` and
-:meth:`~agen.aclose` expose the generator they drive as a read-only
-``ag_gen`` attribute.
-
-.. versionadded:: 3.16
-   The ``ag_gen`` attribute.
-
-
 .. _typesseq:
 
 Sequence Types --- :class:`list`, :class:`tuple`, :class:`range`

Doc/library/inspect.rst

@@ -284,6 +284,12 @@ attributes (see :ref:`import-mod-attrs` for module attributes):
 |                 |                   | ``AGEN_SUSPENDED``, or    |
 |                 |                   | ``AGEN_CLOSED``           |
 +-----------------+-------------------+---------------------------+
+| async generator | ag_gen            | async generator driven by |
+| awaitable       |                   | the awaitable returned    |
+|                 |                   | from ``asend()``,         |
+|                 |                   | ``athrow()``, or          |
+|                 |                   | ``aclose()``              |
++-----------------+-------------------+---------------------------+
 | coroutine       | __name__          | name                      |
 +-----------------+-------------------+---------------------------+
 |                 | __qualname__      | qualified name            |
@@ -360,6 +366,11 @@ attributes (see :ref:`import-mod-attrs` for module attributes):
    Add ``gi_state`` attribute to generators, ``cr_state`` attribute to
    coroutines, and ``ag_state`` attribute to async generators.
 
+.. versionchanged:: 3.16
+
+   Add ``ag_gen`` attribute to the awaitables returned by the ``asend()``,
+   ``athrow()`` and ``aclose()`` methods of async generators.
+
 .. function:: getmembers(object[, predicate])
 
    Return all the members of an object in a list of ``(name, value)``