def METHOD_NAME(self) -> Mapping[str, str]:
    _data = self.request.data
    data = {
        "slack_team_id": _get_field_id_option(_data, "team"),
        "slack_channel_id": _get_field_id_option(_data, "channel"),
        "slack_user_id": _get_field_id_option(_data, "user"),
        "slack_event_id": _data.get("event_id"),
        "slack_callback_id": _data.get("callback_id"),
        "slack_api_app_id": _data.get("api_app_id"),
    }
    if self._integration:
        data["integration_id"] = self.integration.id
    return {k: v for k, v in data.items() if v}