def identity(data=None, name=None, attr=None, out=None, **kwargs):
    """Returns a copy of the input.

    From:src/operator/tensor/elemwise_unary_op_basic.cc:246

    Parameters
    ----------
    data : Symbol
        The input array.

    name : string, optional.
        Name of the resulting symbol.

    Returns
    -------
    Symbol
        The result symbol.
    """
    return 0,
