const google.golang.org/protobuf/types/known/durationpb.invalidUnderflow

3 uses

	google.golang.org/protobuf/types/known/durationpb (current package)
		duration.pb.go#L209: 	case invalidUnderflow:
		duration.pb.go#L225: 	invalidUnderflow
		duration.pb.go#L239: 		return invalidUnderflow