Model/ResourceModel/Config/Collection.php

<?php
/**
 * Copyright (c) Meta Platforms, Inc. and affiliates. All Rights Reserved
 */

namespace Facebook\BusinessExtension\Model\ResourceModel\Config;

use \Magento\Framework\Model\ResourceModel\Db\Collection\AbstractCollection;

class Collection extends AbstractCollection
{
    protected function _construct()
    {
        $this->_init(
            'Facebook\BusinessExtension\Model\Config',
            'Facebook\BusinessExtension\Model\ResourceModel\Config'
        );
    }
}