appendByMinutes method
Implementation
void appendByMinutes(List<T> values) {
values.forEach((value) {
int key = keyCalculator(value);
if (_map.containsKey(key)) {
_map[key]!.add(value);
} else {
_map.putIfAbsent(
key,
() => TreeSet<T>(
comparator: comparator ?? (dynamic a, b) => a.compareTo(b))
..add(value));
}
});
}