video_server/app/Repositories/UsdtChainRepository.php

<?php

namespace App\Repositories;

use App\Model\UsdtChainModel;
use Hyperf\Database\Model\Builder;
use KZ2\Repositories\Model\Repository;

class UsdtChainRepository extends Repository
{

    public function model()
    {
        return UsdtChainModel::class;
    }
}