def bias_hmp(mat):
    result = self.derivatives.bias_jac_mat_prod(module, g_inp, g_out, mat)
    result = h_out_mat_prod(result)
    result = self.derivatives.param_mjp('bias', module, g_inp, g_out, result)
    return result
def bias_hmp(mat):
    result = self.derivatives.bias_jac_mat_prod(module, g_inp, g_out, mat)
    result = h_out_mat_prod(result)
    result = self.derivatives.param_mjp('bias', module, g_inp, g_out, result)
    return result