@classmethod
def _load_version(cls, unpickler, version):
    """
        An function to load an object with a specific version of the class.

        WARNING: This implementation is very simple.
                 Overwrite for smarter implementations.

        Parameters
        ----------
        unpickler : GLUnpickler
            A GLUnpickler file handle.

        version : int
            A version number as maintained by the class writer.
        """
    return unpickler.load()
