How do you create a new unit in SI?

[rmolina]

In the following example, i want to return a value from bar with some L³/T² units, let's say m³/s².
I did not find any consistent unit I could use. And I don't know how to define my own.

use uom::si::f64::{Time, Volume, VolumeRate};
use uom::si::time::second;
use uom::si::volume::cubic_meter;

fn foo(time: Time, volume: Volume) -> VolumeRate {
    volume / time // returns a VolumeRate
}

fn bar(time: Time, volume_rate: VolumeRate) /* -> MyUnit */
{
    volume_rate / time; // I want to remove the semicolon
}

fn main() {
    let time = Time::new::<second>(6.0);
    let volume = Volume::new::<cubic_meter>(80.0);
    let volume_rate = foo(time, volume);
    println!("{:?}", volume_rate);

    let quantity = bar(time, volume_rate);
    println!("{:?}", quantity);
}