public static bool ContainsAll<T>(
	this IEnumerable<T> first,
	IEnumerable<T> second
)

<ExtensionAttribute>
Public Shared Function ContainsAll(Of T) ( 
	first As IEnumerable(Of T),
	second As IEnumerable(Of T)
) As Boolean

public:
[ExtensionAttribute]
generic<typename T>
static bool ContainsAll(
	IEnumerable<T>^ first, 
	IEnumerable<T>^ second
)

[<ExtensionAttribute>]
static member ContainsAll : 
        first : IEnumerable<'T> * 
        second : IEnumerable<'T> -> bool