code: def drop_temporary(pr: PullRequestDetails,
                     problem: Optional[CannotAutomergeError],
                     prev_seen_times: Dict[int, datetime.datetime],
                     next_seen_times: Dict[int, datetime.datetime],
                     ) -> Optional[CannotAutomergeError]:
      
  
      if problem is not None and problem.may_be_temporary:
          since = prev_seen_times.get(pr.pull_id, datetime.datetime.utcnow())
          if is_recent_date(since):
              next_seen_times[pr.pull_id] = since
              return None
  
      return problem
docs: Filters out problems that may be temporary.