System.Collections by Microsoft

<PackageReference Include="System.Collections" Version="4.0.11-beta-23225" />

 Stack<T>

public int Count { get; }

public Stack()

public Stack(int capacity)

public Stack(IEnumerable<T> collection)

public void Clear()

public bool Contains(T item)

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

public T Peek()

public T Pop()

public void Push(T item)

public T[] ToArray()

public void TrimExcess()