public void FromSeconds()
{
var d = Duration.fromSeconds(1.4f);
d.millis.shouldEqual(1400);
d.seconds.shouldEqual(1.4f);
}
public static Duration hours(this float v) => Duration.fromSeconds(v * 3600);
public static Duration minutes(this float v) => Duration.fromSeconds(v * 60);
public static Duration seconds(this float v) => Duration.fromSeconds(v);
[PublicAPI] public static Duration days(this float v) => Duration.fromSeconds(v * 3600 * 24);
[PublicAPI] public static Duration hours(this int v) => Duration.fromSeconds(v * 3600);
[PublicAPI] public static Duration minutes(this int v) => Duration.fromSeconds(v * 60);
[PublicAPI] public static Duration seconds(this int v) => Duration.fromSeconds(v);