public abstract IAggregateFluent<TNewResult> Unwind<TNewResult>(
	FieldDefinition<TResult> field,
	IBsonSerializer<TNewResult> newResultSerializer = null
)

Public MustOverride Function Unwind(Of TNewResult) ( 
	field As FieldDefinition(Of TResult),
	Optional newResultSerializer As IBsonSerializer(Of TNewResult) = Nothing
) As IAggregateFluent(Of TNewResult)

abstract Unwind : 
        field : FieldDefinition<'TResult> * 
        ?newResultSerializer : IBsonSerializer<'TNewResult> 
(* Defaults:
        let _newResultSerializer = defaultArg newResultSerializer null
*)
-> IAggregateFluent<'TNewResult>