const google.golang.org/protobuf/encoding/protowire.LastReservedNumber

2 uses

	google.golang.org/protobuf/encoding/protowire (current package)
		wire.go#L26: 	LastReservedNumber  Number = 19999
		wire.go#L36: 	return MinValidNumber <= n && n < FirstReservedNumber || LastReservedNumber < n && n <= MaxValidNumber