pub const UNKNOWN_ERROR: u32 = 0x0;
pub const SHUTDOWN_IN_PROGRESS: u32 = 0x1;
pub const SHUTDOWN: u32 = 0x2;
pub const STREAM_CLOSED_PREMATURELY: u32 = 0x3;
pub const INVALID_TOPIC_NAME: u32 = 0x4;
pub const REPLIER_ALREADY_BOUND: u32 = 0x5;
pub const CLOUD_AUTH_FAILED: u32 = 0x6;