public static TrackingHashMap <EqK, K, V> clear <EqK, K, V>(TrackingHashMap <EqK, K, V> map) where EqK : struct, Eq <K> => TrackingHashMap <EqK, K, V> .Empty;
public static TrackingHashMap <K, V> clear <K, V>(TrackingHashMap <K, V> map) => TrackingHashMap <K, V> .Empty;