The "handler" will be notified every time a put
object progress event is raised.

C# |
[ObsoleteAttribute("The With methods are obsolete and will be removed in version 2 of the AWS SDK for .NET. See http://aws.amazon.com/sdkfornet/#version2 for more information.")] public GetObjectResponse WithSubscriber( EventHandler<WriteObjectProgressArgs> handler )

- handler (EventHandler<(Of <(<'WriteObjectProgressArgs>)>)>)
- A method that consumes the put object progress notification

this instance of the PutObjectRequest