# 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