Function formatDuration

formatDuration(
duration: Milliseconds,
transform?: (num: number) => string,
): string
Formats a time given in milliseconds with units.
Parameters
- duration: Milliseconds
  Time to be formatted in milliseconds
- transform: (num: number) => string = ...
  Runs before the num is formatted perfect place to put a .toFixed()
Returns string
Usage
```
formatDuration(500); // 500ms
formatDuration(SECOND); // 1s
formatDuration(MINUTE); // 1min
formatDuration(HOUR); // 1h
```
- Defined in time.ts:45