public static IEnumerable<T> Concat<T>(
	this IEnumerable<T> head,
	T tail
)

<ExtensionAttribute> _
Public Shared Function Concat(Of T) ( _
	head As IEnumerable(Of T), _
	tail As T _
) As IEnumerable(Of T)

public:
[ExtensionAttribute]
generic<typename T>
static IEnumerable<T>^ Concat(
	IEnumerable<T>^ head, 
	T tail
)