definitively going somewhere.

dodgeballtracker/helper.py

@@ -1,5 +1,7 @@
 import contextlib
 import time
+from typing import Iterator
+from dodgeballtracker.typing import VideoFrame, VideoTimestamp
 import cv2
 import logging
 
@@ -7,7 +9,7 @@ logger = logging.getLogger(__name__)
 
 
 
-def iter_frames(video_cap):
+def iter_frames(video_cap) -> Iterator[tuple[VideoFrame, VideoTimestamp]]:
     while 1:
         ret, frame = video_cap.read()
         if not ret: