IntegrationCollection.php

См. документацию.

<?php
 
namespace Bitrix\Rest\Entity\Collection;
 
use Bitrix\Rest\Entity\Integration;

class IntegrationCollection extends BaseCollection
{
    protected static function getItemClassName(): string
    {
        return Integration::class;
    }
 
    public function getIntegrationIds(): array
    {
        return $this->map(function ($integration) {
            return $integration->getId();
        });
    }
}