public static TResult CachedExpression<TSource, TArg1, TArg2, TArg3, TArg4, TArg5, TResult>(
    this IQueryable<TSource> source,
    Func<IQueryable<TSource>, TArg1, TArg2, TArg3, TArg4, TArg5, TResult> f,
    TArg1 a1,
    TArg2 a2,
    TArg3 a3,
    TArg4 a4,
    TArg5 a5
)

<ExtensionAttribute>
Public Shared Function CachedExpression(Of TSource, TArg1, TArg2, TArg3, TArg4, TArg5, TResult)(
    source As IQueryable(Of TSource),
    f As Func(Of IQueryable(Of TSource), TArg1, TArg2, TArg3, TArg4, TArg5, TResult),
    a1 As TArg1,
    a2 As TArg2,
    a3 As TArg3,
    a4 As TArg4,
    a5 As TArg5
) As TResult