code: def make_retrigger_request(repo_name, request_id, auth, count=DEFAULT_COUNT_NUM,
                             priority=DEFAULT_PRIORITY, dry_run=True):
      
      url = '{}/{}/request'.format(SELF_SERVE, repo_name)
      payload = {'request_id': request_id}
  
      if count != DEFAULT_COUNT_NUM or priority != DEFAULT_PRIORITY:
          payload.update({'count': count,
                          'priority': priority})
  
      if dry_run:
          LOG.info('We would make a POST request to %s with the payload: %s' % (url, str(payload)))
          return None
  
      LOG.info("We're going to re-trigger an existing completed job with request_id: %s %i time(s)."
               % (request_id, count))
      req = requests.post(
          url,
          headers={'Accept': 'application/json'},
          data=payload,
          auth=auth,
          timeout=TCP_TIMEOUT,
      )
      # TODO: add debug message with job_id URL.
      return req
docs: Retrigger a request using buildapi self-serve. Returns a request.
  
      Buildapi documentation:
      POST  /self-serve/{branch}/request
      Rebuild `request_id`, which must be passed in as a POST parameter.
      `priority` and `count` are also accepted as optional
      parameters. `count` defaults to 1, and represents the number
      of times this build  will be rebuilt.