text: #ifndef KEYBOARD_H
  #define KEYBOARD_H
  #include <z80e/core/cpu.h>
  
  z80iodevice_t init_keyboard();
  void free_keyboard(void *keyboard);
  void release_key(void *keyboard, uint8_t keycode);
  void depress_key(void *keyboard, uint8_t keycode);
  
  #endif
  