Method Contains

csharp/src/Fory/NullableKeyDictionary.cs:167–171

(KeyValuePair<TKey, TValue> item)

    }

    public bool Contains(KeyValuePair<TKey, TValue> item)
    {
        return TryGetValue(item.Key, out TValue value) &&
               EqualityComparer<TValue>.Default.Equals(value, item.Value);
    }

    public void CopyTo(KeyValuePair<TKey, TValue>[] array, int arrayIndex)
    {