One request's bounded denoising units. The first advance prefills the
prompt and draws the first canvas; each later advance runs one denoising
step (a finished block also emits it and prepares the next). Only the
final result leaves the run; close() releases a run that has not finished.
One request's bounded denoising units. The first advance prefills the prompt and draws the first canvas; each later advance runs one denoising step (a finished block also emits it and prepares the next). Only the final result leaves the run; close() releases a run that has not finished.