getData method
Implementation
RespData<VT?>? getData(KT? key) {
RespData? res = buffer![key];
if (res != null) {
var time = DateTime.now();
if (res.expire != null && res.expire! < time.millisecondsSinceEpoch) {
res = null;
buffer!.remove(key);
}
}
return res as RespData<VT?>?;
}