mapEquals<K, V> function
Entry-wise equality check for maps.
Returns true if both maps have the same length and all entries
have equal keys and values via ==.
Implementation
bool mapEquals<K, V>(Map<K, V>? a, Map<K, V>? b) {
if (identical(a, b)) return true;
if (a == null || b == null) return false;
if (a.length != b.length) return false;
for (final entry in a.entries) {
if (!b.containsKey(entry.key) || b[entry.key] != entry.value) return false;
}
return true;
}