code: def require_compatible_version(compatible_version, word="File"):
      
      if isinstance(compatible_version, str):
          compatible_version = parse_version(compatible_version)
      elif not isinstance(compatible_version, Version):
          raise ValueError("Type of `compatible_version` not understood.")
      
      current_version = parse_version(CURRENT_VERSION)
      if current_version < compatible_version:
          raise VersionError("{0} written for version >= {1}, this is {2}.".format(
              word, str(compatible_version), CURRENT_VERSION
          ))
docs: Check that compatible version of input data is not too new.