code: def gcs_get_url(url,
                  altexts=None,
                  client=None,
                  service_account_json=None,
                  raiseonfail=False):
      
      bucket_item = url.replace('gs://','')
      bucket_item = bucket_item.split('/')
      bucket = bucket_item[0]
      filekey = '/'.join(bucket_item[1:])
  
      return gcs_get_file(bucket,
                          filekey,
                          bucket_item[-1],
                          altexts=altexts,
                          client=client,
                          service_account_json=service_account_json,
                          raiseonfail=raiseonfail)
docs: This gets a single file from a Google Cloud Storage bucket.
  
      This uses the gs:// URL instead of a bucket name and key.
  
      Parameters
      ----------
  
      url : str
          GCS URL to download. This should begin with 'gs://'.
  
      altexts : None or list of str
          If not None, this is a list of alternate extensions to try for the file
          other than the one provided in `filename`. For example, to get anything
          that's an .sqlite where .sqlite.gz is expected, use altexts=[''] to
          strip the .gz.
  
      client : google.cloud.storage.Client instance
          The instance of the Client to use to perform the download operation. If
          this is None, a new Client will be used. If this is None and
          `service_account_json` points to a downloaded JSON file with GCS
          credentials, a new Client with the provided credentials will be used. If
          this is not None, the existing Client instance will be used.
  
      service_account_json : str
          Path to a downloaded GCS credentials JSON file.
  
      raiseonfail : bool
          If True, will re-raise whatever Exception caused the operation to fail
          and break out immediately.
  
      Returns
      -------
  
      str
          Path to the downloaded filename or None if the download was
          unsuccessful.