-extern int connman_element_add_static_property(struct connman_element *element,
- const char *name, int type, const void *value);
-extern int connman_element_set_static_property(struct connman_element *element,
- const char *name, int type, const void *value);
-extern int connman_element_add_static_array_property(struct connman_element *element,
- const char *name, int type, const void *value, int len);
-extern int connman_element_define_properties(struct connman_element *element, ...);
-extern int connman_element_create_property(struct connman_element *element,
- const char *name, int type);
-extern int connman_element_set_property(struct connman_element *element,
- enum connman_property_id id, const void *value);