Initiator.php

См. документацию.

<?php
 
namespace Bitrix\MessageService\Providers\Edna\WhatsApp;
 
use Bitrix\MessageService\Providers\Edna\Constants\ChannelType;
 
class Initiator extends \Bitrix\MessageService\Providers\Edna\Initiator
{
    protected string $channelType = ChannelType::WHATSAPP;
 
}