``tkinter.Canvas.coords()`` now flattens its arguments. It now accepts not only coordinates as separate arguments (``x1, y1, x2, y2, ...``) and a sequence of coordinates (``[x1, y1, x2, y2, ...]``), but also coordinates grouped in pairs (``(x1, y1), (x2, y2), ...`` and ``[(x1, y1), (x2, y2), ...]``), like ``create_*()`` methods. (Contributed by Serhiy Storchaka in :gh:`94473`.)