def __getitem__(
      self,
      claim_id):
    """Get the proto for the wikipedia page by url.

    Args:
      claim_id: The fever claim_id to get evidence for

    Returns:
      Returns proto of page if it exists, otherwise None
    """
    claim_id = int(claim_id)
    result = (self.session.query(Scrape).filter_by(claim_id=claim_id).first())
    if result is None:
      return None
    else:
      return retrieval_pb2.GetDocumentsResponse.FromString(
          gzip.decompress(result.proto))
Get the proto for the wikipedia page by url.

    Args:
      claim_id: The fever claim_id to get evidence for

    Returns:
      Returns proto of page if it exists, otherwise None
    
language/serene/scrape_db.py