public abstract Task<IAsyncCursor<TProjection>> FindAsync<TProjection>(
	FilterDefinition<TDocument> filter,
	FindOptions<TDocument, TProjection> options = null,
	CancellationToken cancellationToken = null
)

Public MustOverride Function FindAsync(Of TProjection) ( 
	filter As FilterDefinition(Of TDocument),
	Optional options As FindOptions(Of TDocument, TProjection) = Nothing,
	Optional cancellationToken As CancellationToken = Nothing
) As Task(Of IAsyncCursor(Of TProjection))

abstract FindAsync : 
        filter : FilterDefinition<'TDocument> * 
        ?options : FindOptions<'TDocument, 'TProjection> * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _options = defaultArg options null
        let _cancellationToken = defaultArg cancellationToken null
*)
-> Task<IAsyncCursor<'TProjection>>