Python Iterator Exhaustion Motion Study

Create a 15-second animation from [verified iterator event trace]. Tokens pass once through one cursor; a logging step consumes the first two and the later loop receives only the remaining tokens. Display a fresh iterator separately without magically restoring the original.

Confirm required reference images and timing inputs are present before generating. Keep objects, identities, spatial relationships and light direction consistent. Render the clip when video generation is supported; otherwise supply a timed shot list, reference checklist and generation-ready prompt, labeled as a production plan. Do not claim rendered output without an actual file. Check the opening, transition and final frame against the stated counts and geometry.