def METHOD_NAME(self, opt) -> str:
    """
    Get the datafile path.
    Useful for subclassed teachers.
    """
    base_datatype = self._get_base_datatype(opt)
    return os.path.join(
        opt['datapath'],
        'empatheticdialogues',
        'empatheticdialogues',
        base_datatype + '.csv',
    )