public function group()
    {
        if (is_null($this->group)) {
            $this->group = new Group($this->accessToken);
        }

        return $this->group;
    }
public function group()
    {
        if (is_null($this->group)) {
            $this->group = new Group($this->accessToken);
        }

        return $this->group;
    }
Return the group instance.

@return \EasyWeChat\ShakeAround\Group