code: def multi_use_pipeline(caller_reference, return_url, options = {})
        cbui MultiUse.new(options.merge(:caller_reference => caller_reference, :return_url => return_url))
      end
docs: Creates a pipeline that will authorize you to send money _from_ the user multiple times.
  
   This is also necessary to create sender tokens that are valid for a long period of time, even if
   you only plan to collect from the token once.
  
   See http://docs.amazonwebservices.com/AmazonFPS/latest/FPSAdvancedGuide/MultiUsePipeline.html