public abstract Task<TProjection> FindOneAndUpdateAsync<TProjection>(
	FilterDefinition<TDocument> filter,
	UpdateDefinition<TDocument> update,
	FindOneAndUpdateOptions<TDocument, TProjection> options = null,
	CancellationToken cancellationToken = null
)

Public MustOverride Function FindOneAndUpdateAsync(Of TProjection) ( 
	filter As FilterDefinition(Of TDocument),
	update As UpdateDefinition(Of TDocument),
	Optional options As FindOneAndUpdateOptions(Of TDocument, TProjection) = Nothing,
	Optional cancellationToken As CancellationToken = Nothing
) As Task(Of TProjection)

abstract FindOneAndUpdateAsync : 
        filter : FilterDefinition<'TDocument> * 
        update : UpdateDefinition<'TDocument> * 
        ?options : FindOneAndUpdateOptions<'TDocument, 'TProjection> * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _options = defaultArg options null
        let _cancellationToken = defaultArg cancellationToken null
*)
-> Task<'TProjection>