IAggregateFluent<AggregateBucketAutoResult<TValue>> BucketAuto<TValue>(
	AggregateExpressionDefinition<TResult, TValue> groupBy,
	int buckets,
	AggregateBucketAutoOptions options = null
)

Function BucketAuto(Of TValue) ( 
	groupBy As AggregateExpressionDefinition(Of TResult, TValue),
	buckets As Integer,
	Optional options As AggregateBucketAutoOptions = Nothing
) As IAggregateFluent(Of AggregateBucketAutoResult(Of TValue))

abstract BucketAuto : 
        groupBy : AggregateExpressionDefinition<'TResult, 'TValue> * 
        buckets : int * 
        ?options : AggregateBucketAutoOptions 
(* Defaults:
        let _options = defaultArg options null
*)
-> IAggregateFluent<AggregateBucketAutoResult<'TValue>>