text: from metaflow import FlowSpec, Parameter, step
  
  class SFNTestFlow(FlowSpec):
  
      num = Parameter('num',
                      help="Give a number",
                      default=1)
  
      @step
      def start(self):
          print("The number defined as a parameter is", self.num)
          self.next(self.end)
  
      @step
      def end(self):
          print('done!')
  
  if __name__ == '__main__':
      SFNTestFlow()
  
  