/// Shortcut for [`std::time::Duration::from_secs`].
/// ```
/// # use local_async_utils::prelude::*;
/// let duration = sec!(5);
/// assert_eq!(duration, std::time::Duration::from_secs(5));
/// ```
/// Shortcut for [`std::time::Duration::from_millis`].
/// ```
/// # use local_async_utils::prelude::*;
/// let duration = millisec!(1500);
/// assert_eq!(duration, std::time::Duration::from_millis(1500));
/// ```
/// Shortcut for [`std::time::Duration::from_secs`].
/// ```
/// # use local_async_utils::prelude::*;
/// let duration = min!(2);
/// assert_eq!(duration, std::time::Duration::from_secs(120));
/// ```