'Dispose of a HIT that is no longer needed.
Only HITs in the "reviewable" state, with all submitted
assignments approved or rejected, can be disposed. A Requester
can call GetReviewableHITs to determine which HITs are
reviewable, then call GetAssignmentsForHIT to retrieve the
assignments.  Disposing of a HIT removes the HIT from the
results of a call to GetReviewableHITs.'

def dispose_hit(self, hit_id):

    params = {'HITId': hit_id}
    return self._process_request('DisposeHIT', params)
