如何使用Algolia php客户端创建副本？

{
    "require": {
        "algolia/algoliasearch-client-php": "^2.0"
    }
}

require 'vendor/autoload.php';

use Algolia\AlgoliaSearch\SearchClient;

$client = SearchClient::create('APP_ID', 'API_KEY');

$sourceIndex = $client->initIndex('source_index');
$targetIndex = $client->initIndex('target_index');

$task = $sourceIndex->copyTo($targetIndex, ['scope' => ['settings', 'synonyms', 'rules']]);

$task->wait();

require 'vendor/autoload.php';

use Algolia\AlgoliaSearch\SearchClient;

$client = SearchClient::create('APP_ID', 'API_KEY');

$sourceIndex = $client->initIndex('source_index');
$targetIndex = $client->initIndex('target_index');

$task = $sourceIndex->copyTo($targetIndex, ['scope' => ['settings', 'synonyms', 'rules']]);
$task->wait();