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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_bucket_notification(self, bucket_name):
 """ Get notifications configured for the given bucket. :param bucket_name: Bucket name. """

        is_valid_bucket_name(bucket_name)

        response = self._url_open(
            "GET",
            bucket_name=bucket_name,
            query={"notification": ""},
        )
        data = response.data.decode('utf-8')
        return parse_get_bucket_notification(data)