src/Comment/Comment.php
public function open($msgId, $index)
    {
        $params = [
            'msg_data_id' => $msgId,
            'index' => $index,
        ];

        return $this->parseJSON('json', [self::API_OPEN_COMMENT, $params]);
    }
public function open($msgId, $index)
    {
        $params = [
            'msg_data_id' => $msgId,
            'index' => $index,
        ];

        return $this->parseJSON('json', [self::API_OPEN_COMMENT, $params]);
    }
Open article comment.

@param string $msgId
@param int    $index

@return \EasyWeChat\Support\Collection