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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_channel_by_channel_id(self, channel_id):
 """ Get a channel by 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"))