union method
Implementation
@override
MutableEnumSet<Lane> union(MutableEnumSet<Lane> other) =>
MutableLaneEnumSet.fromRawValue(this.rawValue | other.rawValue);
@override
MutableEnumSet<Lane> union(MutableEnumSet<Lane> other) =>
MutableLaneEnumSet.fromRawValue(this.rawValue | other.rawValue);