public static IAggregateFluent<TNewResult> BucketAuto<TResult, TValue, TNewResult>(
	this IAggregateFluent<TResult> aggregate,
	Expression<Func<TResult, TValue>> groupBy,
	int buckets,
	Expression<Func<IGrouping<TValue, TResult>, TNewResult>> output,
	AggregateBucketAutoOptions options = null
)

<ExtensionAttribute>
Public Shared Function BucketAuto(Of TResult, TValue, TNewResult) ( 
	aggregate As IAggregateFluent(Of TResult),
	groupBy As Expression(Of Func(Of TResult, TValue)),
	buckets As Integer,
	output As Expression(Of Func(Of IGrouping(Of TValue, TResult), TNewResult)),
	Optional options As AggregateBucketAutoOptions = Nothing
) As IAggregateFluent(Of TNewResult)

[<ExtensionAttribute>]
static member BucketAuto : 
        aggregate : IAggregateFluent<'TResult> * 
        groupBy : Expression<Func<'TResult, 'TValue>> * 
        buckets : int * 
        output : Expression<Func<IGrouping<'TValue, 'TResult>, 'TNewResult>> * 
        ?options : AggregateBucketAutoOptions 
(* Defaults:
        let _options = defaultArg options null
*)
-> IAggregateFluent<'TNewResult>