def parse_gcs_url(gsurl):
        """
        Given a Google Cloud Storage URL (gs://<bucket>/<blob>), returns a
        tuple containing the corresponding bucket and blob.
        """
        parsed_url = urlparse(gsurl)
        if not parsed_url.netloc:
            raise AirflowException('Please provide a bucket name')
        else:
            bucket = parsed_url.netloc
            blob = parsed_url.path.strip('/')
            return bucket, blob
Given a Google Cloud Storage URL (gs://<bucket>/<blob>), returns a
        tuple containing the corresponding bucket and blob.