59_backing = ImmutableDictionary<string, V>.Empty; 67_backing = GetInitialDictionary(keyComparer); 82_backing = b.AddRange((KeyValuePair<string, V>[])v); 103_backing = that._backing; 108_backing = dictionary.ToImmutableDictionary(); 172private set => _backing = _backing.WithComparers(keyComparer: value); 184_backing = _backing.SetItem(key, value); 208_backing = _backing.SetItem(key, value); 216_backing = _backing.SetItems(items); 238_backing = _backing.Remove(key); 258_backing = _backing.SetItem(item.Key, item.Value); 266_backing = _backing.Clear(); 292_backing = _backing.Remove(item.Key);

76object v = info.GetValue(nameof(_backing), typeof(KeyValuePair<string, V>[]))!; 103_backing = that._backing; 114public ICollection<string> Keys => ((IDictionary<string, V>)_backing).Keys; 119public ICollection<V> Values => ((IDictionary<string, V>)_backing).Values; 124public int Count => _backing.Count; 129public bool IsReadOnly => ((IDictionary<string, V>)_backing).IsReadOnly; 171get => _backing.KeyComparer; 172private set => _backing = _backing.WithComparers(keyComparer: value); 180get => _backing[key]; 184_backing = _backing.SetItem(key, value); 208_backing = _backing.SetItem(key, value); 216_backing = _backing.SetItems(items); 221return _backing.Where(predicate); 228return _backing.ContainsKey(key); 236ImmutableDictionary<string, V> initial = _backing; 238_backing = _backing.Remove(key); 240return initial != _backing; // whether the removal occured 249return _backing.TryGetValue(key, out value); 258_backing = _backing.SetItem(item.Key, item.Value); 266_backing = _backing.Clear(); 274return _backing.Contains(item); 282((IDictionary<string, V>)_backing).CopyTo(array, arrayIndex); 290ImmutableDictionary<string, V> initial = _backing; 292_backing = _backing.Remove(item.Key); 294return initial != _backing; // whether the removal occured 302return _backing.GetEnumerator(); 344return ((IDictionary)_backing).GetEnumerator(); 381return ReferenceEquals(other._backing, _backing); 386ImmutableDictionary<string, V> snapshot = _backing; 389info.AddValue(nameof(_backing), array);