typedef struct {
  char *memory;
  size_t size;
} MemoryStruct;

typedef struct {
  int is_update;
  int category; // 0: Met; 1: Health
  char *event;
  char *headline;
  int severity;
  time_t onset, expires;
} warning_t;

char *gadgets_retrieve_current_temperature(char *output, int max_len);
char *gadgets_retrieve_weather_forecast(char *output, int max_len);
char *gadgets_retrieve_weather_warnings(char *output, int max_len);