FetchXRTResWithSubTimeout subscribe multiple messages of the same requestId for the given subscribe timeout, and the result will be appended in the response slice After the subscribe timeout, the response slice pointer will be returned.

Client implements the client of MQTT management API, https://docs.iotechsys.com/edge-xrt21/mqtt-management/mqtt-management.html.

CommandOptions provides the config for sending the request to manage components.

DiscoveryOptions provides the config for sending the discovery request like discovery:trigger, device:scan.

StatusOptions provides the config for subscribing the XRT status.

RequestMap maintains the mapping between requestId and command response channel of []byte type.