#if FAT using System.Collections.Generic; namespace LinqInternal.Collections.Specialized { [System.Diagnostics.DebuggerDisplay("Count={Count}")] internal sealed partial class NullAwareDictionary : IExtendedDictionary { IEnumerable IReadOnlyDictionary.Keys { get { return _keys; } } IEnumerable IReadOnlyDictionary.Values { get { return _values; } } IReadOnlyCollection> IExtendedCollection>.AsReadOnly { get { return _readOnly; } } IReadOnlyCollection IExtendedReadOnlyDictionary.Keys { get { return _keys; } } IReadOnlyCollection IExtendedReadOnlyDictionary.Values { get { return _values; } } } } #endif