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

3 uses

	google.golang.org/protobuf/types/known/timestamppb (current package)
		timestamp.pb.go#L224: 	case invalidUnderflow:
		timestamp.pb.go#L238: 	invalidUnderflow
		timestamp.pb.go#L252: 		return invalidUnderflow