timer

A scheduled callback or countdown. Freed automatically once no longer referenced or once it completes.

remain _accessor

Get or set how many seconds remain before the timer triggers.

value: (when setting) A float specifying new time remaining.

Returns: The current time left (when getting), or None (when setting).

fn _accessor

Get or set the function called when the timer expires.

value: (when setting) The function.

Returns: The function or undefined if none is set.