public static IQueryable<int> CountAsQuery<TSource>(
	this IQueryable<TSource> source,
	Expression<Func<TSource, bool>> predicate
)

<ExtensionAttribute> 
Public Shared Function CountAsQuery(Of TSource) ( 
	source As IQueryable(Of TSource),
	predicate As Expression(Of Func(Of TSource, Boolean))
) As IQueryable(Of Integer)

public:
[ExtensionAttribute]
generic<typename TSource>
static IQueryable<int>^ CountAsQuery(
	IQueryable<TSource>^ source, 
	Expression<Func<TSource, bool>^>^ predicate
)