const time.Nanosecond

8 uses

	time (current package)
		format.go#L1616: 	"ns": uint64(Nanosecond),
		time.go#L935: 	Nanosecond  Duration = 1
		time.go#L936: 	Microsecond          = 1000 * Nanosecond

	google.golang.org/grpc/internal/grpcutil
		encode_duration.go#L45: 	if d := div(t, time.Nanosecond); d <= maxTimeoutValue {

	google.golang.org/grpc/internal/transport
		http_util.go#L182: 		return time.Nanosecond, true

	google.golang.org/protobuf/types/known/durationpb
		duration.pb.go#L176: 	d += time.Duration(nanos) * time.Nanosecond

	os
		exec_unix.go#L138: 	return time.Duration(p.rusage.Utime.Nano()) * time.Nanosecond
		exec_unix.go#L142: 	return time.Duration(p.rusage.Stime.Nano()) * time.Nanosecond