def METHOD_NAME(cls, datatype: str) -> bool:
    """
    Return whether we should cycle data based on the datatype.
    :param datatype:
        parlai datatype
    :return should_cycle:
        given datatype, return whether we should cycle
    """
    assert datatype is not None, 'datatype must not be none'
    return (
        'train' in datatype
        and 'evalmode' not in datatype
        and 'ordered' not in datatype
    )