text: #ifndef RESISTOR_COLOR_DUO_H
  #define RESISTOR_COLOR_DUO_H
  
  #include <stdint.h>
  
  typedef enum {
      BLACK = 0,
      BROWN,
      RED,
      ORANGE,
      YELLOW,
      GREEN,
      BLUE,
      VIOLET,
      GREY,
      WHITE
  } resistor_band_t;
  
  uint16_t color_code(resistor_band_t colors[]);
  
  #endif
  