XBT_PUBLIC(void *) xbt_dict_get(xbt_dict_t dict, const char *key);
XBT_PUBLIC(void *) xbt_dict_get_or_null(xbt_dict_t dict, const char *key);
XBT_PUBLIC(char *) xbt_dict_get_key(xbt_dict_t dict, const void *data);
XBT_PUBLIC(void *) xbt_dict_get(xbt_dict_t dict, const char *key);
XBT_PUBLIC(void *) xbt_dict_get_or_null(xbt_dict_t dict, const char *key);
XBT_PUBLIC(char *) xbt_dict_get_key(xbt_dict_t dict, const void *data);