var google.golang.org/grpc/internal.JoinServerOptions

2 uses

	google.golang.org/grpc/internal (current package)
		internal.go#L85: 	JoinServerOptions interface{} // func(...grpc.ServerOption) grpc.ServerOption

	google.golang.org/grpc
		server.go#L83: 	internal.JoinServerOptions = newJoinServerOption