code: def get_channel_by_channel_id(self, channel_id):
          
          self._validate_uuid(channel_id)
  
          url = "/notification/v1/channel/{}".format(channel_id)
  
          response = NWS_DAO().getURL(url, self._read_headers)
  
          if response.status != 200:
              raise DataFailureException(url, response.status, response.data)
  
          data = json.loads(response.data)
          return self._channel_from_json(data.get("Channel"))
docs: Get a channel by channel id