src/Stats/Stats.php
public function cardSummary($from, $to, $condSource = 0)
    {
        $ext = [
            'cond_source' => intval($condSource),
        ];

        return $this->query(self::API_CARD_SUMMARY, $from, $to, $ext);
    }
public function cardSummary($from, $to, $condSource = 0)
    {
        $ext = [
            'cond_source' => intval($condSource),
        ];

        return $this->query(self::API_CARD_SUMMARY, $from, $to, $ext);
    }
拉取卡券概况数据接口.

@param string $from
@param string $to
@param int    $condSource

@return \EasyWeChat\Support\Collection