text: #ifndef BUTTON_DEBOUNCE_ROOT_TIMER_H
  #define BUTTON_DEBOUNCE_ROOT_TIMER_H
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  typedef unsigned int millisecond_ticks_t;
  
  millisecond_ticks_t GetSystemTicks(void);
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif //BUTTON_DEBOUNCE_ROOT_TIMER_H
  