interval method
Implementation
Timer interval(Duration duration, Function(Timer) fn,
{Symbol? uniqueId, bool execNow = true}) {
final tm = IntervalTimer(fn, duration, execNow: execNow);
return _timer(tm, uniqueId: uniqueId);
}
Timer interval(Duration duration, Function(Timer) fn,
{Symbol? uniqueId, bool execNow = true}) {
final tm = IntervalTimer(fn, duration, execNow: execNow);
return _timer(tm, uniqueId: uniqueId);
}