public static Task<TResult> MaxAsync<TSource, TResult>(
	this IMongoQueryable<TSource> source,
	Expression<Func<TSource, TResult>> selector,
	CancellationToken cancellationToken = null
)

<ExtensionAttribute>
Public Shared Function MaxAsync(Of TSource, TResult) ( 
	source As IMongoQueryable(Of TSource),
	selector As Expression(Of Func(Of TSource, TResult)),
	Optional cancellationToken As CancellationToken = Nothing
) As Task(Of TResult)

[<ExtensionAttribute>]
static member MaxAsync : 
        source : IMongoQueryable<'TSource> * 
        selector : Expression<Func<'TSource, 'TResult>> * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _cancellationToken = defaultArg cancellationToken null
*)
-> Task<'TResult>