in lib/src/equality.dart [462:472]
int hash(Object? o) {
if (o is Set) return SetEquality(this).hash(o);
if (o is Map) return MapEquality(keys: this, values: this).hash(o);
if (!_unordered) {
if (o is List) return ListEquality(this).hash(o);
if (o is Iterable) return IterableEquality(this).hash(o);
} else if (o is Iterable) {
return UnorderedIterableEquality(this).hash(o);
}
return _base.hash(o);
}