code: def blob_get(self, table, digest, chunk_size=1024 * 128):
          
          response = self._request('GET', _blob_path(table, digest), stream=True)
          if response.status == 404:
              raise DigestNotFoundException(table, digest)
          _raise_for_status(response)
          return response.stream(amt=chunk_size)
docs: Returns a file like object representing the contents of the blob
          with the given digest.