Creates a Sink which writes incoming ByteString elements to the given file and either overwrites or appends to it. Materializes a TaskTResult of IOResult that will be completed with the size of the file(in bytes) at the streams completion, and a possible exception if IO operation was not completed successfully. This source is backed by an Actor which will use the dedicated "akka.stream.blocking-io-dispatcher", unless configured otherwise by using ActorAttributes.

public static Sink<ByteString, Task<IOResult>> ToFile(
	FileInfo f,
	Nullable<FileMode> fileMode = null
)

static member ToFile : 
        f : FileInfo * 
        ?fileMode : Nullable<FileMode> 
(* Defaults:
        let _fileMode = defaultArg fileMode null
*)
-> Sink<ByteString, Task<IOResult>>