def log2(data=None, name=None, attr=None, out=None, **kwargs):
    """Returns element-wise Base-2 logarithmic value of the input.

    ``2**log2(x) = x``

    The storage type of ``log2`` output is always dense



    Defined in src/operator/tensor/elemwise_unary_op_logexp.cc:L105

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

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

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