skeletonData<T> method
returns real data passed if neither the model is busy nor the object passed is busy
Implementation
T skeletonData<T>(
{required T? realData, required T busyData, Object? busyKey}) {
/// If busyKey is supplied we check busy(busyKey) to see if that property is busy
/// If it is we return busyData, else realData
bool isBusyKeySupplied = busyKey != null;
if ((isBusyKeySupplied && busy(busyKey)) || realData == null)
return busyData;
else if (!isBusyKeySupplied && isBusy) return busyData;
return realData;
}