func (p *PuppetService) FriendshipAccept(friendshipID string) (err error) {
    log.Tracef("PuppetService FriendshipAccept(%s)\n", friendshipID)
    _, err = p.grpcClient.FriendshipAccept(context.Background(), &pbwechatypuppet.FriendshipAcceptRequest{
        Id: friendshipID,
    })