System.Collections by Microsoft

<PackageReference Include="System.Collections" Version="4.0.10-beta-22605" />

 Queue<T>

public int Count { get; }

public Queue()

public Queue(IEnumerable<T> collection)

public Queue(int capacity)

public void Clear()

public bool Contains(T item)

public void CopyTo(T[] array, int arrayIndex)

public T Dequeue()

public void Enqueue(T item)

public T Peek()

public T[] ToArray()

public void TrimExcess()