public static IEnumerable<TSource> AssertCount<TSource>(
	this IEnumerable<TSource> source,
	int count,
	Func<int, int, Exception> errorSelector
)

<ExtensionAttribute>
Public Shared Function AssertCount(Of TSource) ( 
	source As IEnumerable(Of TSource),
	count As Integer,
	errorSelector As Func(Of Integer, Integer, Exception)
) As IEnumerable(Of TSource)

public:
[ExtensionAttribute]
generic<typename TSource>
static IEnumerable<TSource>^ AssertCount(
	IEnumerable<TSource>^ source, 
	int count, 
	Func<int, int, Exception^>^ errorSelector
)

[<ExtensionAttribute>]
static member AssertCount : 
        source : IEnumerable<'TSource> * 
        count : int * 
        errorSelector : Func<int, int, Exception> -> IEnumerable<'TSource>