def process_pipes(obj, options)
      internal_pipes(options).each {|pipe|
        obj = Pipes.send("#{pipe}_pipe", obj, options[pipe]) if options[pipe]
      }
      process_user_pipes(obj, options)
    end
def process_pipes(obj, options)
      internal_pipes(options).each {|pipe|
        obj = Pipes.send("#{pipe}_pipe", obj, options[pipe]) if options[pipe]
      }
      process_user_pipes(obj, options)
    end
Main method which processes all pipe commands, both default and user-defined ones.