Fires a webhook in the event of a failed WhatsApp contact lookup.

def fire_failed_contact_lookup(self, msisdn):
        """
        Fires a webhook in the event of a failed WhatsApp contact lookup.
        """
        payload = {"address": msisdn}
        # We cannot user the raw_hook_event here, because we don't have a user, so we
        # manually filter and send the hooks for all users
        hooks = Hook.objects.filter(event="whatsapp.failed_contact_check")
        for hook in hooks:
            hook.deliver_hook(
                None, payload_override={"hook": hook.dict(), "data": payload}
            )