def METHOD_NAME(path):
  """Reads a schema from the provided location.
  Args:
    path: The location of the file holding a serialized Schema proto.
  Returns:
    An instance of Schema or None if the input argument is None
  """
  result = schema_pb2.Schema()
  contents = file_io.read_file_to_string(path)
  text_format.Parse(contents, result)
  return result