# File lib/net/ssh/service/process/open.rb, line 138
          def do_exec_success( channel )
            channel.on_data &method(:do_data)
            channel.on_extended_data &method(:do_extended_data)
            channel.on_close &method(:do_close)
            channel.on_request &method(:do_request)
            @on_success.call( self ) if @on_success
          end