listEquals<T> function
Implementation
bool listEquals<T>(List<T>? a, List<T>? b) {
if (a == null) return b == null;
if (b == null || a.length != b.length) return false;
if (identical(a, b)) return true;
for (int i = 0; i < a.length; i++) {
if (a[i] != b[i]) return false;
}
return true;
}