text: #ifndef TALKER_USING_SERIAL_H
  #define TALKER_USING_SERIAL
  
  #include <Arduino.h>
  #include "Talker.h"
  
  class TalkerUsingSerial : public Talker {
    public:
      void setup();
      void loop();
      void cancel();
      void done();
      boolean isTalking();
      void sayWelcomePart1();
      void sayWelcomePart2();
      void saySignoffPart1();
      void saySignoffPart2();
      void sayNumber(int number, boolean pointFive); 
  
    private:
      void say(const char  * PROGMEM s);
      const char  * PROGMEM saying;
      uint32_t saying_ms;
  };
  
  
  #endif
  
  
  