revoking async task feedback

[hexkey]

Hello,

Quick question, is it by design that revoking an asynchronous task in Celery does not generate any feedback or acknowledgment? For example:

task_id = "some_task_uuid"

celery_app.control.revoke(task_id, terminate=True)

Returns nothing, even if the task_id does not exists (I am expecting at least to complain wrong task ID), or if task was previously already revoked (already revoked or similar). Same thing with:

task_result = celery_app.AsyncResult(task_id)
task_result.forget()

I am missing something ?

Thank you in advance for feedback.