def METHOD_NAME(ctx, grad_output):
    x, scale, minibatch_mean, minibatch_inv_var = ctx.saved_variables
    eps = ctx.eps
    bn_group = ctx.bn_group
    rank_id = ctx.rank_id
    peer_buffers = ctx.peer_buffers
    dx, dscale, dbias = cudnn_gbn_lib.METHOD_NAME(x,
                   grad_output,
                   scale,
                   minibatch_mean,
                   minibatch_inv_var,
                   eps,
                   bn_group,
                   rank_id,
                   peer_buffers)
    return dx, dscale, dbias, None, None, None, None, None, None, None, None, None, None