Macro output parameters

• Macro result

      result_def = [[ "result", Type.Float, None, "the ADC reading" ]]
  

  Used in other macro:

          value = self.runMacro(mymacro)
  

• Spock output

          self.output("My message")
  

• Set in environment

      self.setEnv( "LastReadValue", newreadout)