from towhee.operator import PyOperator


class TextLoader(PyOperator):
    """
    DefaultOperator for _input and _output nodes.
    """

    def __init__(self):
        #pylint: disable=useless-super-delegation
        super().__init__()

    def __call__(self, *args):
        if len(args) == 1:
            return args[0]
        return args