throttle method
void
throttle()
Implementation
void throttle() async {
String key = hashCode.toString();
bool enable = _funcThrottle[key] ?? true;
if (enable) {
_funcThrottle[key] = false;
try {
await target?.call();
} catch (e) {
rethrow;
} finally {
_funcThrottle.remove(key);
}
}
}