Beta
A unique ID. Must be between one and MAX_ROUTER_UID_LENGTH
characters (see mcbe-addon-ipc).
uid is passed straight to mcbe-addon-ipc's Router as its own unique ID.
Two routers sharing an ID will receive each other's messages, so if your
add-on constructs a Router of its own, give it an ID different from the one
passed here. Anything identifying your add-on works, as long as nothing else
in the world uses it.
Throws a PublicError of type PublicErrorType.InvalidState if this package has already been initialized, if Bedrock Energistics Core is not in the world, or if called before worldLoad.
Throws a PublicError of type PublicErrorType.InvalidArgument if uid is empty or too long.
Initializes this package. Some APIs require this to be called. Must be called after
worldLoad.