type Toggler = {
disabled: &bool,
is_toggled: &bool,
label: &string,
on_toggle: &fn(b: bool) -> Any,
width: &Length,
size: &[f64, null],
spacing: &[f64, null]
};
val toggler: fn(
?#label: &string,
?#on_toggle: fn(b: bool) -> Any,
?#width: &Length,
?#size: &[f64, null],
?#spacing: &[f64, null],
?#disabled: &bool,
is_toggled: &bool
) -> Widget