project-manager/api/app/facade/Channel.php

<?php

namespace app\facade;

use think\Facade;

/**
 * @method  sendChannel( $events, string $type, int $connection_ids=0, array $data = []) static
 */
class Channel extends Facade
{
    protected static function getFacadeClass(): string
    {
        return 'app\common\util\Channel';
    }
}