wanyue_app/config/event.php

<?php

return [
    'client_message.delivery' => [
        [\app\event\ClientMessageEvent::class, 'delivery']
    ],
    'client_message.refund' => [
        [\app\event\ClientMessageEvent::class, 'refund']
    ],
    'client_message.return_status' => [
        [\app\event\ClientMessageEvent::class, 'returnStatus']
    ],
];