A pointer to a NULL-terminated array of pointers to gio.DBusAnnotationInfo structures or NULL if there are no annotations.
A pointer to a NULL-terminated array of pointers to gio.DBusArgInfo structures or NULL if there are no arguments.
The name of the D-Bus signal, e.g. "NameOwnerChanged".
The reference count or -1 if statically allocated.
Undocumented in source.