Qiniu_Pro/qiniu/services/blockchain/bsc/Callback.php

<?php

namespace qiniu\services\blockchain\bsc;

class Callback
{
    public $result;

    function __invoke($error, $result)
    {
        //$this->error = $error;
        if ($error) throw $error;
        $this->result = $result;
    }
}