code: def set_revision_limit(self, limit):
          
          url = '/'.join((self.database_url, '_revs_limit'))
  
          resp = self.r_session.put(url, data=json.dumps(limit, cls=self.client.encoder))
          resp.raise_for_status()
  
          return response_to_json_dict(resp)
docs: Sets the limit of historical revisions to store for any single document
          in the current remote database.
  
          :param int limit: Number of revisions to store for any single document
              in the current remote database.
  
          :returns: Revision limit set operation status in JSON format