public GridFSDownloadStream OpenDownloadStream(
	ObjectId id,
	GridFSDownloadOptions options = null,
	CancellationToken cancellationToken = null
)

Public Function OpenDownloadStream ( 
	id As ObjectId,
	Optional options As GridFSDownloadOptions = Nothing,
	Optional cancellationToken As CancellationToken = Nothing
) As GridFSDownloadStream

abstract OpenDownloadStream : 
        id : ObjectId * 
        ?options : GridFSDownloadOptions * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _options = defaultArg options null
        let _cancellationToken = defaultArg cancellationToken null
*)
-> GridFSDownloadStream 
override OpenDownloadStream : 
        id : ObjectId * 
        ?options : GridFSDownloadOptions * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _options = defaultArg options null
        let _cancellationToken = defaultArg cancellationToken null
*)
-> GridFSDownloadStream