Register starts the SkyLB load-report worker with the given service spec and port.

RegisterMulti is similar to Register but supports multiple services.

Set customized GRPC server options, such as max send/recv message size.

StartSkylbReportLoad starts load reporting to SkyLB server at the fixed interval.

StartSkylbReportLoadWithFixedHost starts load reporting to SkyLB server at the fixed interval with the fixed host.