Does logstash-input-s3-sns-sqs support backup_to_bucket?

[Ying-Yi_Huang]

Hello,
I want to use the plugin to read from S3 and then backup the files completed to a backup S3 back. It doesn't seem to work. Here is my config:

    input {
      s3snssqs {    
         region           => "us-east-1"
        queue            => "myqueue"
        queue_owner_aws_account_id => "xxxxx"
        sqs_skip_delete  =>  true
       codec             =>   "json_lines"
       from_sns         => false
       delete_on_success => true
      s3_options_by_bucket => [
                  { bucket_name => "mybucket"
                    prefix      => "my_prefix"
                    backup_to_bucket => "my_backup_bucket"
                  }
                ]
   }
   }