Ticker (Armeria 0.92.0 API reference)

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
```
@FunctionalInterface
public interface Ticker
```
A time source; returns a time value representing the number of nanoseconds elapsed since some fixed but arbitrary point in time.
Warning: this interface can only be used to measure elapsed time, not wall time.

Method Summary

All Methods Static Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`long`	`read()`	Returns the number of nanoseconds elapsed since this ticker's fixed point of reference.
`static Ticker`	`systemTicker()`	A ticker that reads the current time using `System.nanoTime()`.

- Method Detail
  - read
```
long read()
```
    Returns the number of nanoseconds elapsed since this ticker's fixed point of reference.
  - systemTicker
```
static Ticker systemTicker()
```
    A ticker that reads the current time using System.nanoTime().