expiration property
Implementation
set expiration(DateTime? value) {
js_util.setProperty(this, 'expiration',
value != null ? value.millisecondsSinceEpoch / 1000 : jsUndefined);
}
set expiration(DateTime? value) {
js_util.setProperty(this, 'expiration',
value != null ? value.millisecondsSinceEpoch / 1000 : jsUndefined);
}