[doc] Update typing hints for batched and itergroup

Change-Id: Iabeb1371520e5337fc35343eeb5e9c488ac04f74
---
M pywikibot/tools/itertools.py
M pywikibot/backports.py
2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/pywikibot/backports.py b/pywikibot/backports.py
index 40a798f..c1a7d05 100644
--- a/pywikibot/backports.py
+++ b/pywikibot/backports.py
@@ -168,7 +168,7 @@
 
 # gh-98363
 if PYTHON_VERSION < (3, 12) or SPHINX_RUNNING:
-    def batched(iterable, n: int) -> Generator[Any, None, None]:
+    def batched(iterable, n: int) -> Generator[tuple, None, None]:
         """Batch data from the *iterable* into tuples of length *n*.
 
         .. note:: The last batch may be shorter than *n*.
diff --git a/pywikibot/tools/itertools.py b/pywikibot/tools/itertools.py
index 4166aaf..f1c2fb1 100644
--- a/pywikibot/tools/itertools.py
+++ b/pywikibot/tools/itertools.py
@@ -14,7 +14,7 @@
 from itertools import chain, zip_longest
 from typing import Any
 
-from pywikibot.backports import batched, Generator
+from pywikibot.backports import batched, Generator, List
 from pywikibot.logging import debug
 from pywikibot.tools import deprecated, issue_deprecation_warning
 
@@ -31,7 +31,7 @@
 @deprecated('backports.batched()', since='8.2.0')
 def itergroup(iterable,
               size: int,
-              strict: bool = False) -> Generator[Any, None, None]:
+              strict: bool = False) -> Generator[List[Any], None, None]:
     """Make an iterator that returns lists of (up to) size items from iterable.
 
     Example:

