@@ -211,7 +211,7 @@ def dashify(string: str) -> str:
     return string.replace("_", "-")
 
 
-def slots_to_dict(self: object, exclude: Sequence[str] = ()) -> Dict[str, Any]:
+def slots_to_dict(self: "Git", exclude: Sequence[str] = ()) -> Dict[str, Any]:
     return {s: getattr(self, s) for s in self.__slots__ if s not in exclude}
 
 
 
@@ -656,7 +656,7 @@ def _store_path(self, filepath: PathLike, fprogress: Callable) -> BaseIndexEntry
     def _entries_for_paths(
         self,
         paths: List[str],
-        path_rewriter: Callable,
+        path_rewriter: Union[Callable, None],
         fprogress: Callable,
         entries: List[BaseIndexEntry],
     ) -> List[BaseIndexEntry]:
 
@@ -102,7 +102,7 @@ def run_commit_hook(name: str, index: "IndexFile", *args: str) -> None:
             relative_hp = Path(hp).relative_to(index.repo.working_dir).as_posix()
             cmd = ["bash.exe", relative_hp]
 
-        cmd = subprocess.Popen(
+        process = subprocess.Popen(
             cmd + list(args),
             env=env,
             stdout=subprocess.PIPE,
@@ -116,13 +116,13 @@ def run_commit_hook(name: str, index: "IndexFile", *args: str) -> None:
     else:
         stdout_list: List[str] = []
         stderr_list: List[str] = []
-        handle_process_output(cmd, stdout_list.append, stderr_list.append, finalize_process)
+        handle_process_output(process, stdout_list.append, stderr_list.append, finalize_process)
         stdout = "".join(stdout_list)
         stderr = "".join(stderr_list)
-        if cmd.returncode != 0:
+        if process.returncode != 0:
             stdout = force_text(stdout, defenc)
             stderr = force_text(stderr, defenc)
-            raise HookExecutionError(hp, cmd.returncode, stderr, stdout)
+            raise HookExecutionError(hp, process.returncode, stderr, stdout)
     # end handle return code
 
 
 
@@ -147,7 +147,7 @@ def utctz_to_altz(utctz: str) -> int:
     return seconds if int_utctz < 0 else -seconds
 
 
-def altz_to_utctz_str(altz: int) -> str:
+def altz_to_utctz_str(altz: float) -> str:
     """Convert a timezone offset west of UTC in seconds into a git timezone offset string
 
     :param altz: timezone offset in seconds west of UTC
 
@@ -1049,7 +1049,7 @@ class IterableList(List[T_IterableObj]):
 
     __slots__ = ("_id_attr", "_prefix")
 
-    def __new__(cls, id_attr: str, prefix: str = "") -> "IterableList[IterableObj]":
+    def __new__(cls, id_attr: str, prefix: str = "") -> "IterableList[T_IterableObj]":
         return super(IterableList, cls).__new__(cls)
 
     def __init__(self, id_attr: str, prefix: str = "") -> None: