public static Task<TDocument> FindOneAndUpdateAsync<TDocument>(
	this IMongoCollection<TDocument> collection,
	FilterDefinition<TDocument> filter,
	UpdateDefinition<TDocument> update,
	FindOneAndUpdateOptions<TDocument, TDocument> options = null,
	CancellationToken cancellationToken = null
)

<ExtensionAttribute>
Public Shared Function FindOneAndUpdateAsync(Of TDocument) ( 
	collection As IMongoCollection(Of TDocument),
	filter As FilterDefinition(Of TDocument),
	update As UpdateDefinition(Of TDocument),
	Optional options As FindOneAndUpdateOptions(Of TDocument, TDocument) = Nothing,
	Optional cancellationToken As CancellationToken = Nothing
) As Task(Of TDocument)

[<ExtensionAttribute>]
static member FindOneAndUpdateAsync : 
        collection : IMongoCollection<'TDocument> * 
        filter : FilterDefinition<'TDocument> * 
        update : UpdateDefinition<'TDocument> * 
        ?options : FindOneAndUpdateOptions<'TDocument, 'TDocument> * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _options = defaultArg options null
        let _cancellationToken = defaultArg cancellationToken null
*)
-> Task<'TDocument>