pub unsafe extern "C" fn g_dbus_interface_info_lookup_signal(
info: *mut GDBusInterfaceInfo,
name: *const c_char,
) -> *mut GDBusSignalInfo
pub unsafe extern "C" fn g_dbus_interface_info_lookup_signal(
info: *mut GDBusInterfaceInfo,
name: *const c_char,
) -> *mut GDBusSignalInfo