def METHOD_NAME(F, x: Tensor, alpha: float = 1.0) -> Tensor:
    """
    Derivative function of Elu activation computed at point `x`.
    Parameters
    ----------
    F
        A module that can either refer to the Symbol API or the NDArray API in
        MXNet.
    x
        Input tensor
    alpha
        alpha parameter of Elu
    Returns
    -------
    Tensor
        Derivative tensor
    """
    m = x > 0
    return m + (1 - m) * (F.LeakyReLU(x, act_type="elu", slope=alpha) + alpha)