pub const CHANNEL_CONNECT: &str = "ms.channel.connect";
pub const CHANNEL_READY: &str = "ms.channel.ready";
pub const CHANNEL_UNAUTHORIZED: &str = "ms.channel.unauthorized";
pub const CHANNEL_TIMEOUT: &str = "ms.channel.timeOut";
pub const D2D_SERVICE_MESSAGE: &str = "d2d_service_message";
pub const MS_ERROR: &str = "ms.error";
pub const ART_APP_REQUEST: &str = "art_app_request";