src/User/User.php
public function lists($nextOpenId = null)
    {
        $params = ['next_openid' => $nextOpenId];

        return $this->parseJSON('get', [self::API_LIST, $params]);
    }
public function lists($nextOpenId = null)
    {
        $params = ['next_openid' => $nextOpenId];

        return $this->parseJSON('get', [self::API_LIST, $params]);
    }
List users.

@param string $nextOpenId

@return \EasyWeChat\Support\Collection