diff --git a/gstreamer-app/src/auto/app_sink.rs b/gstreamer-app/src/auto/app_sink.rs
index 6fe578ca5..39344b2c0 100644
--- a/gstreamer-app/src/auto/app_sink.rs
+++ b/gstreamer-app/src/auto/app_sink.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ffi;
@@ -18,7 +18,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct AppSink(Object<ffi::GstAppSink>): [
+    pub struct AppSink(Object<ffi::GstAppSink, ffi::GstAppSinkClass>): [
         gst_base::BaseSink => gst_base_ffi::GstBaseSink,
         gst::Element => gst_ffi::GstElement,
         gst::Object => gst_ffi::GstObject,
diff --git a/gstreamer-app/src/auto/app_src.rs b/gstreamer-app/src/auto/app_src.rs
index ad9677547..49b22a7b3 100644
--- a/gstreamer-app/src/auto/app_src.rs
+++ b/gstreamer-app/src/auto/app_src.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use AppStreamType;
@@ -20,7 +20,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct AppSrc(Object<ffi::GstAppSrc>): [
+    pub struct AppSrc(Object<ffi::GstAppSrc, ffi::GstAppSrcClass>): [
         gst_base::BaseSrc => gst_base_ffi::GstBaseSrc,
         gst::Element => gst_ffi::GstElement,
         gst::Object => gst_ffi::GstObject,
diff --git a/gstreamer-app/src/auto/enums.rs b/gstreamer-app/src/auto/enums.rs
index f44675d2e..bdc4b99cd 100644
--- a/gstreamer-app/src/auto/enums.rs
+++ b/gstreamer-app/src/auto/enums.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ffi;
diff --git a/gstreamer-app/src/auto/flags.rs b/gstreamer-app/src/auto/flags.rs
index 6ec8a6cc3..a000ae933 100644
--- a/gstreamer-app/src/auto/flags.rs
+++ b/gstreamer-app/src/auto/flags.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ffi;
diff --git a/gstreamer-app/src/auto/mod.rs b/gstreamer-app/src/auto/mod.rs
index 278a0d271..9c21e6690 100644
--- a/gstreamer-app/src/auto/mod.rs
+++ b/gstreamer-app/src/auto/mod.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 mod app_sink;
diff --git a/gstreamer-audio/src/auto/enums.rs b/gstreamer-audio/src/auto/enums.rs
index 3143c19bc..66172bdcf 100644
--- a/gstreamer-audio/src/auto/enums.rs
+++ b/gstreamer-audio/src/auto/enums.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ffi;
diff --git a/gstreamer-audio/src/auto/flags.rs b/gstreamer-audio/src/auto/flags.rs
index 3c5bd8907..35a21f4e3 100644
--- a/gstreamer-audio/src/auto/flags.rs
+++ b/gstreamer-audio/src/auto/flags.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ffi;
diff --git a/gstreamer-audio/src/auto/mod.rs b/gstreamer-audio/src/auto/mod.rs
index e0233fe66..6b9dd3680 100644
--- a/gstreamer-audio/src/auto/mod.rs
+++ b/gstreamer-audio/src/auto/mod.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 mod stream_volume;
diff --git a/gstreamer-audio/src/auto/stream_volume.rs b/gstreamer-audio/src/auto/stream_volume.rs
index 709d4a75b..ae766070e 100644
--- a/gstreamer-audio/src/auto/stream_volume.rs
+++ b/gstreamer-audio/src/auto/stream_volume.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use StreamVolumeFormat;
@@ -17,7 +17,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct StreamVolume(Object<ffi::GstStreamVolume>);
+    pub struct StreamVolume(Object<ffi::GstStreamVolume, ffi::GstStreamVolumeInterface>);
 
     match fn {
         get_type => || ffi::gst_stream_volume_get_type(),
diff --git a/gstreamer-base/src/auto/adapter.rs b/gstreamer-base/src/auto/adapter.rs
index 9b7986714..d3bf609c9 100644
--- a/gstreamer-base/src/auto/adapter.rs
+++ b/gstreamer-base/src/auto/adapter.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ffi;
@@ -11,7 +11,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Adapter(Object<ffi::GstAdapter>);
+    pub struct Adapter(Object<ffi::GstAdapter, ffi::GstAdapterClass>);
 
     match fn {
         get_type => || ffi::gst_adapter_get_type(),
diff --git a/gstreamer-base/src/auto/base_sink.rs b/gstreamer-base/src/auto/base_sink.rs
index 64c990ed1..5efedfc69 100644
--- a/gstreamer-base/src/auto/base_sink.rs
+++ b/gstreamer-base/src/auto/base_sink.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ffi;
@@ -19,7 +19,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct BaseSink(Object<ffi::GstBaseSink>): [
+    pub struct BaseSink(Object<ffi::GstBaseSink, ffi::GstBaseSinkClass>): [
         gst::Element => gst_ffi::GstElement,
         gst::Object => gst_ffi::GstObject,
     ];
diff --git a/gstreamer-base/src/auto/base_src.rs b/gstreamer-base/src/auto/base_src.rs
index c25d70019..79da99853 100644
--- a/gstreamer-base/src/auto/base_src.rs
+++ b/gstreamer-base/src/auto/base_src.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ffi;
@@ -19,7 +19,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct BaseSrc(Object<ffi::GstBaseSrc>): [
+    pub struct BaseSrc(Object<ffi::GstBaseSrc, ffi::GstBaseSrcClass>): [
         gst::Element => gst_ffi::GstElement,
         gst::Object => gst_ffi::GstObject,
     ];
diff --git a/gstreamer-base/src/auto/base_transform.rs b/gstreamer-base/src/auto/base_transform.rs
index 625aa0364..a6e550293 100644
--- a/gstreamer-base/src/auto/base_transform.rs
+++ b/gstreamer-base/src/auto/base_transform.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ffi;
@@ -19,7 +19,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct BaseTransform(Object<ffi::GstBaseTransform>): [
+    pub struct BaseTransform(Object<ffi::GstBaseTransform, ffi::GstBaseTransformClass>): [
         gst::Element => gst_ffi::GstElement,
         gst::Object => gst_ffi::GstObject,
     ];
diff --git a/gstreamer-base/src/auto/enums.rs b/gstreamer-base/src/auto/enums.rs
index 6ec8a6cc3..a000ae933 100644
--- a/gstreamer-base/src/auto/enums.rs
+++ b/gstreamer-base/src/auto/enums.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ffi;
diff --git a/gstreamer-base/src/auto/flags.rs b/gstreamer-base/src/auto/flags.rs
index 6ec8a6cc3..a000ae933 100644
--- a/gstreamer-base/src/auto/flags.rs
+++ b/gstreamer-base/src/auto/flags.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ffi;
diff --git a/gstreamer-base/src/auto/mod.rs b/gstreamer-base/src/auto/mod.rs
index 8bcac101c..079a35f9a 100644
--- a/gstreamer-base/src/auto/mod.rs
+++ b/gstreamer-base/src/auto/mod.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 mod adapter;
diff --git a/gstreamer-base/src/auto/push_src.rs b/gstreamer-base/src/auto/push_src.rs
index 6aaea9d6f..592ad8a27 100644
--- a/gstreamer-base/src/auto/push_src.rs
+++ b/gstreamer-base/src/auto/push_src.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use BaseSrc;
@@ -12,7 +12,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct PushSrc(Object<ffi::GstPushSrc>): [
+    pub struct PushSrc(Object<ffi::GstPushSrc, ffi::GstPushSrcClass>): [
         BaseSrc,
         gst::Element => gst_ffi::GstElement,
         gst::Object => gst_ffi::GstObject,
diff --git a/gstreamer-player/src/auto/enums.rs b/gstreamer-player/src/auto/enums.rs
index 8f452bc19..9f7dd7d81 100644
--- a/gstreamer-player/src/auto/enums.rs
+++ b/gstreamer-player/src/auto/enums.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ffi;
diff --git a/gstreamer-player/src/auto/flags.rs b/gstreamer-player/src/auto/flags.rs
index 6ec8a6cc3..a000ae933 100644
--- a/gstreamer-player/src/auto/flags.rs
+++ b/gstreamer-player/src/auto/flags.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ffi;
diff --git a/gstreamer-player/src/auto/mod.rs b/gstreamer-player/src/auto/mod.rs
index bf80be95d..5d9d50c28 100644
--- a/gstreamer-player/src/auto/mod.rs
+++ b/gstreamer-player/src/auto/mod.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 mod player;
diff --git a/gstreamer-player/src/auto/player.rs b/gstreamer-player/src/auto/player.rs
index fa4617eaf..20be88984 100644
--- a/gstreamer-player/src/auto/player.rs
+++ b/gstreamer-player/src/auto/player.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use Error;
@@ -25,7 +25,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Player(Object<ffi::GstPlayer>);
+    pub struct Player(Object<ffi::GstPlayer, ffi::GstPlayerClass>);
 
     match fn {
         get_type => || ffi::gst_player_get_type(),
diff --git a/gstreamer-player/src/auto/player_audio_info.rs b/gstreamer-player/src/auto/player_audio_info.rs
index d3f9884fc..d1e6c5300 100644
--- a/gstreamer-player/src/auto/player_audio_info.rs
+++ b/gstreamer-player/src/auto/player_audio_info.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use PlayerStreamInfo;
@@ -10,7 +10,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct PlayerAudioInfo(Object<ffi::GstPlayerAudioInfo>): PlayerStreamInfo;
+    pub struct PlayerAudioInfo(Object<ffi::GstPlayerAudioInfo, ffi::GstPlayerAudioInfoClass>): PlayerStreamInfo;
 
     match fn {
         get_type => || ffi::gst_player_audio_info_get_type(),
diff --git a/gstreamer-player/src/auto/player_g_main_context_signal_dispatcher.rs b/gstreamer-player/src/auto/player_g_main_context_signal_dispatcher.rs
index 45a42b025..80f98727f 100644
--- a/gstreamer-player/src/auto/player_g_main_context_signal_dispatcher.rs
+++ b/gstreamer-player/src/auto/player_g_main_context_signal_dispatcher.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use PlayerSignalDispatcher;
@@ -16,7 +16,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct PlayerGMainContextSignalDispatcher(Object<ffi::GstPlayerGMainContextSignalDispatcher>): PlayerSignalDispatcher;
+    pub struct PlayerGMainContextSignalDispatcher(Object<ffi::GstPlayerGMainContextSignalDispatcher, ffi::GstPlayerGMainContextSignalDispatcherClass>): PlayerSignalDispatcher;
 
     match fn {
         get_type => || ffi::gst_player_g_main_context_signal_dispatcher_get_type(),
diff --git a/gstreamer-player/src/auto/player_media_info.rs b/gstreamer-player/src/auto/player_media_info.rs
index d40f9634b..4edfed676 100644
--- a/gstreamer-player/src/auto/player_media_info.rs
+++ b/gstreamer-player/src/auto/player_media_info.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use PlayerAudioInfo;
@@ -14,7 +14,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct PlayerMediaInfo(Object<ffi::GstPlayerMediaInfo>);
+    pub struct PlayerMediaInfo(Object<ffi::GstPlayerMediaInfo, ffi::GstPlayerMediaInfoClass>);
 
     match fn {
         get_type => || ffi::gst_player_media_info_get_type(),
diff --git a/gstreamer-player/src/auto/player_signal_dispatcher.rs b/gstreamer-player/src/auto/player_signal_dispatcher.rs
index 25558aff5..1e193b212 100644
--- a/gstreamer-player/src/auto/player_signal_dispatcher.rs
+++ b/gstreamer-player/src/auto/player_signal_dispatcher.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ffi;
@@ -10,7 +10,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct PlayerSignalDispatcher(Object<ffi::GstPlayerSignalDispatcher>);
+    pub struct PlayerSignalDispatcher(Object<ffi::GstPlayerSignalDispatcher, ffi::GstPlayerSignalDispatcherInterface>);
 
     match fn {
         get_type => || ffi::gst_player_signal_dispatcher_get_type(),
diff --git a/gstreamer-player/src/auto/player_stream_info.rs b/gstreamer-player/src/auto/player_stream_info.rs
index 3b972fe60..bb7854908 100644
--- a/gstreamer-player/src/auto/player_stream_info.rs
+++ b/gstreamer-player/src/auto/player_stream_info.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ffi;
@@ -11,7 +11,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct PlayerStreamInfo(Object<ffi::GstPlayerStreamInfo>);
+    pub struct PlayerStreamInfo(Object<ffi::GstPlayerStreamInfo, ffi::GstPlayerStreamInfoClass>);
 
     match fn {
         get_type => || ffi::gst_player_stream_info_get_type(),
diff --git a/gstreamer-player/src/auto/player_subtitle_info.rs b/gstreamer-player/src/auto/player_subtitle_info.rs
index 03cfb03b4..cbe4f9bf3 100644
--- a/gstreamer-player/src/auto/player_subtitle_info.rs
+++ b/gstreamer-player/src/auto/player_subtitle_info.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use PlayerStreamInfo;
@@ -10,7 +10,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct PlayerSubtitleInfo(Object<ffi::GstPlayerSubtitleInfo>): PlayerStreamInfo;
+    pub struct PlayerSubtitleInfo(Object<ffi::GstPlayerSubtitleInfo, ffi::GstPlayerSubtitleInfoClass>): PlayerStreamInfo;
 
     match fn {
         get_type => || ffi::gst_player_subtitle_info_get_type(),
diff --git a/gstreamer-player/src/auto/player_video_info.rs b/gstreamer-player/src/auto/player_video_info.rs
index 6791bb440..be5f0f4cb 100644
--- a/gstreamer-player/src/auto/player_video_info.rs
+++ b/gstreamer-player/src/auto/player_video_info.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use PlayerStreamInfo;
@@ -10,7 +10,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct PlayerVideoInfo(Object<ffi::GstPlayerVideoInfo>): PlayerStreamInfo;
+    pub struct PlayerVideoInfo(Object<ffi::GstPlayerVideoInfo, ffi::GstPlayerVideoInfoClass>): PlayerStreamInfo;
 
     match fn {
         get_type => || ffi::gst_player_video_info_get_type(),
diff --git a/gstreamer-player/src/auto/player_video_overlay_video_renderer.rs b/gstreamer-player/src/auto/player_video_overlay_video_renderer.rs
index ae7a3a286..57eaa3fac 100644
--- a/gstreamer-player/src/auto/player_video_overlay_video_renderer.rs
+++ b/gstreamer-player/src/auto/player_video_overlay_video_renderer.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use PlayerVideoRenderer;
@@ -18,7 +18,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct PlayerVideoOverlayVideoRenderer(Object<ffi::GstPlayerVideoOverlayVideoRenderer>): PlayerVideoRenderer;
+    pub struct PlayerVideoOverlayVideoRenderer(Object<ffi::GstPlayerVideoOverlayVideoRenderer, ffi::GstPlayerVideoOverlayVideoRendererClass>): PlayerVideoRenderer;
 
     match fn {
         get_type => || ffi::gst_player_video_overlay_video_renderer_get_type(),
diff --git a/gstreamer-player/src/auto/player_video_renderer.rs b/gstreamer-player/src/auto/player_video_renderer.rs
index be182b82b..8d3137f23 100644
--- a/gstreamer-player/src/auto/player_video_renderer.rs
+++ b/gstreamer-player/src/auto/player_video_renderer.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ffi;
@@ -10,7 +10,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct PlayerVideoRenderer(Object<ffi::GstPlayerVideoRenderer>);
+    pub struct PlayerVideoRenderer(Object<ffi::GstPlayerVideoRenderer, ffi::GstPlayerVideoRendererInterface>);
 
     match fn {
         get_type => || ffi::gst_player_video_renderer_get_type(),
diff --git a/gstreamer-player/src/auto/player_visualization.rs b/gstreamer-player/src/auto/player_visualization.rs
index 645ced6ab..7a9453fcd 100644
--- a/gstreamer-player/src/auto/player_visualization.rs
+++ b/gstreamer-player/src/auto/player_visualization.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ffi;
diff --git a/gstreamer-video/src/auto/enums.rs b/gstreamer-video/src/auto/enums.rs
index e7f4ce70c..32d8d222f 100644
--- a/gstreamer-video/src/auto/enums.rs
+++ b/gstreamer-video/src/auto/enums.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ffi;
diff --git a/gstreamer-video/src/auto/flags.rs b/gstreamer-video/src/auto/flags.rs
index 32c58b357..181302853 100644
--- a/gstreamer-video/src/auto/flags.rs
+++ b/gstreamer-video/src/auto/flags.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ffi;
diff --git a/gstreamer-video/src/auto/mod.rs b/gstreamer-video/src/auto/mod.rs
index 5fd360a4d..3b253b512 100644
--- a/gstreamer-video/src/auto/mod.rs
+++ b/gstreamer-video/src/auto/mod.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 mod video_overlay;
diff --git a/gstreamer-video/src/auto/video_overlay.rs b/gstreamer-video/src/auto/video_overlay.rs
index 0224691a1..8b5e3fb0f 100644
--- a/gstreamer-video/src/auto/video_overlay.rs
+++ b/gstreamer-video/src/auto/video_overlay.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ffi;
@@ -11,7 +11,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct VideoOverlay(Object<ffi::GstVideoOverlay>);
+    pub struct VideoOverlay(Object<ffi::GstVideoOverlay, ffi::GstVideoOverlayInterface>);
 
     match fn {
         get_type => || ffi::gst_video_overlay_get_type(),
diff --git a/gstreamer/src/auto/alias.rs b/gstreamer/src/auto/alias.rs
index 145e204c9..aea6e6d87 100644
--- a/gstreamer/src/auto/alias.rs
+++ b/gstreamer/src/auto/alias.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 #[allow(unused_imports)]
diff --git a/gstreamer/src/auto/bin.rs b/gstreamer/src/auto/bin.rs
index dade3a417..d9a425d8f 100644
--- a/gstreamer/src/auto/bin.rs
+++ b/gstreamer/src/auto/bin.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ChildProxy;
@@ -24,7 +24,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Bin(Object<ffi::GstBin>): Element, Object, ChildProxy;
+    pub struct Bin(Object<ffi::GstBin, ffi::GstBinClass>): Element, Object, ChildProxy;
 
     match fn {
         get_type => || ffi::gst_bin_get_type(),
diff --git a/gstreamer/src/auto/bus.rs b/gstreamer/src/auto/bus.rs
index c84c21881..0d8b529e0 100644
--- a/gstreamer/src/auto/bus.rs
+++ b/gstreamer/src/auto/bus.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ClockTime;
@@ -16,7 +16,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Bus(Object<ffi::GstBus>): Object;
+    pub struct Bus(Object<ffi::GstBus, ffi::GstBusClass>): Object;
 
     match fn {
         get_type => || ffi::gst_bus_get_type(),
diff --git a/gstreamer/src/auto/child_proxy.rs b/gstreamer/src/auto/child_proxy.rs
index ba85c6c68..262208701 100644
--- a/gstreamer/src/auto/child_proxy.rs
+++ b/gstreamer/src/auto/child_proxy.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ffi;
@@ -17,7 +17,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct ChildProxy(Object<ffi::GstChildProxy>);
+    pub struct ChildProxy(Object<ffi::GstChildProxy, ffi::GstChildProxyInterface>);
 
     match fn {
         get_type => || ffi::gst_child_proxy_get_type(),
diff --git a/gstreamer/src/auto/clock.rs b/gstreamer/src/auto/clock.rs
index c9f908dd0..879f03f85 100644
--- a/gstreamer/src/auto/clock.rs
+++ b/gstreamer/src/auto/clock.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ClockTime;
@@ -19,7 +19,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Clock(Object<ffi::GstClock>): Object;
+    pub struct Clock(Object<ffi::GstClock, ffi::GstClockClass>): Object;
 
     match fn {
         get_type => || ffi::gst_clock_get_type(),
diff --git a/gstreamer/src/auto/date_time.rs b/gstreamer/src/auto/date_time.rs
index a92611c22..34508bf74 100644
--- a/gstreamer/src/auto/date_time.rs
+++ b/gstreamer/src/auto/date_time.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ffi;
diff --git a/gstreamer/src/auto/device.rs b/gstreamer/src/auto/device.rs
index 4de3c4078..2a974ff4f 100644
--- a/gstreamer/src/auto/device.rs
+++ b/gstreamer/src/auto/device.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use Caps;
@@ -21,7 +21,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Device(Object<ffi::GstDevice>): Object;
+    pub struct Device(Object<ffi::GstDevice, ffi::GstDeviceClass>): Object;
 
     match fn {
         get_type => || ffi::gst_device_get_type(),
diff --git a/gstreamer/src/auto/device_monitor.rs b/gstreamer/src/auto/device_monitor.rs
index 23395aebd..c6f37d1bc 100644
--- a/gstreamer/src/auto/device_monitor.rs
+++ b/gstreamer/src/auto/device_monitor.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use Bus;
@@ -21,7 +21,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct DeviceMonitor(Object<ffi::GstDeviceMonitor>): Object;
+    pub struct DeviceMonitor(Object<ffi::GstDeviceMonitor, ffi::GstDeviceMonitorClass>): Object;
 
     match fn {
         get_type => || ffi::gst_device_monitor_get_type(),
diff --git a/gstreamer/src/auto/device_provider.rs b/gstreamer/src/auto/device_provider.rs
index 5027f1ab6..313688fa1 100644
--- a/gstreamer/src/auto/device_provider.rs
+++ b/gstreamer/src/auto/device_provider.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use Bus;
@@ -22,7 +22,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct DeviceProvider(Object<ffi::GstDeviceProvider>): Object;
+    pub struct DeviceProvider(Object<ffi::GstDeviceProvider, ffi::GstDeviceProviderClass>): Object;
 
     match fn {
         get_type => || ffi::gst_device_provider_get_type(),
diff --git a/gstreamer/src/auto/device_provider_factory.rs b/gstreamer/src/auto/device_provider_factory.rs
index 5669af0bd..bf668d9f7 100644
--- a/gstreamer/src/auto/device_provider_factory.rs
+++ b/gstreamer/src/auto/device_provider_factory.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use DeviceProvider;
@@ -13,7 +13,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct DeviceProviderFactory(Object<ffi::GstDeviceProviderFactory>): Object;
+    pub struct DeviceProviderFactory(Object<ffi::GstDeviceProviderFactory, ffi::GstDeviceProviderFactoryClass>): Object;
 
     match fn {
         get_type => || ffi::gst_device_provider_factory_get_type(),
diff --git a/gstreamer/src/auto/element.rs b/gstreamer/src/auto/element.rs
index 8da71dc6a..3c49d190e 100644
--- a/gstreamer/src/auto/element.rs
+++ b/gstreamer/src/auto/element.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use Bus;
@@ -36,7 +36,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Element(Object<ffi::GstElement>): Object;
+    pub struct Element(Object<ffi::GstElement, ffi::GstElementClass>): Object;
 
     match fn {
         get_type => || ffi::gst_element_get_type(),
diff --git a/gstreamer/src/auto/element_factory.rs b/gstreamer/src/auto/element_factory.rs
index 6917f1e9d..cc0178a3d 100644
--- a/gstreamer/src/auto/element_factory.rs
+++ b/gstreamer/src/auto/element_factory.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use Caps;
@@ -18,7 +18,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct ElementFactory(Object<ffi::GstElementFactory>): Object;
+    pub struct ElementFactory(Object<ffi::GstElementFactory, ffi::GstElementFactoryClass>): Object;
 
     match fn {
         get_type => || ffi::gst_element_factory_get_type(),
diff --git a/gstreamer/src/auto/enums.rs b/gstreamer/src/auto/enums.rs
index 33cf37d27..2eacc8cf2 100644
--- a/gstreamer/src/auto/enums.rs
+++ b/gstreamer/src/auto/enums.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ffi;
diff --git a/gstreamer/src/auto/flags.rs b/gstreamer/src/auto/flags.rs
index 1bb2246c9..df188ae74 100644
--- a/gstreamer/src/auto/flags.rs
+++ b/gstreamer/src/auto/flags.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ffi;
diff --git a/gstreamer/src/auto/functions.rs b/gstreamer/src/auto/functions.rs
index aa31be4a2..ecef50170 100644
--- a/gstreamer/src/auto/functions.rs
+++ b/gstreamer/src/auto/functions.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use Bin;
diff --git a/gstreamer/src/auto/ghost_pad.rs b/gstreamer/src/auto/ghost_pad.rs
index 2d7e5e81b..6fe317ded 100644
--- a/gstreamer/src/auto/ghost_pad.rs
+++ b/gstreamer/src/auto/ghost_pad.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use Object;
@@ -18,7 +18,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct GhostPad(Object<ffi::GstGhostPad>): ProxyPad, Pad, Object;
+    pub struct GhostPad(Object<ffi::GstGhostPad, ffi::GstGhostPadClass>): ProxyPad, Pad, Object;
 
     match fn {
         get_type => || ffi::gst_ghost_pad_get_type(),
diff --git a/gstreamer/src/auto/mod.rs b/gstreamer/src/auto/mod.rs
index 8e6269088..643c7b265 100644
--- a/gstreamer/src/auto/mod.rs
+++ b/gstreamer/src/auto/mod.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 mod bin;
diff --git a/gstreamer/src/auto/object.rs b/gstreamer/src/auto/object.rs
index e998840ff..b7129b892 100644
--- a/gstreamer/src/auto/object.rs
+++ b/gstreamer/src/auto/object.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ClockTime;
@@ -18,7 +18,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Object(Object<ffi::GstObject>);
+    pub struct Object(Object<ffi::GstObject, ffi::GstObjectClass>);
 
     match fn {
         get_type => || ffi::gst_object_get_type(),
diff --git a/gstreamer/src/auto/pad.rs b/gstreamer/src/auto/pad.rs
index 1b3da38dc..3f67feefe 100644
--- a/gstreamer/src/auto/pad.rs
+++ b/gstreamer/src/auto/pad.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use Caps;
@@ -33,7 +33,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Pad(Object<ffi::GstPad>): Object;
+    pub struct Pad(Object<ffi::GstPad, ffi::GstPadClass>): Object;
 
     match fn {
         get_type => || ffi::gst_pad_get_type(),
diff --git a/gstreamer/src/auto/pad_template.rs b/gstreamer/src/auto/pad_template.rs
index f014d1e8e..94c8d39fa 100644
--- a/gstreamer/src/auto/pad_template.rs
+++ b/gstreamer/src/auto/pad_template.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use Caps;
@@ -20,7 +20,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct PadTemplate(Object<ffi::GstPadTemplate>): Object;
+    pub struct PadTemplate(Object<ffi::GstPadTemplate, ffi::GstPadTemplateClass>): Object;
 
     match fn {
         get_type => || ffi::gst_pad_template_get_type(),
diff --git a/gstreamer/src/auto/pipeline.rs b/gstreamer/src/auto/pipeline.rs
index bc29998a0..e42abe2b6 100644
--- a/gstreamer/src/auto/pipeline.rs
+++ b/gstreamer/src/auto/pipeline.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use Bin;
@@ -22,7 +22,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Pipeline(Object<ffi::GstPipeline>): Bin, Element, Object, ChildProxy;
+    pub struct Pipeline(Object<ffi::GstPipeline, ffi::GstPipelineClass>): Bin, Element, Object, ChildProxy;
 
     match fn {
         get_type => || ffi::gst_pipeline_get_type(),
diff --git a/gstreamer/src/auto/plugin.rs b/gstreamer/src/auto/plugin.rs
index 2cbcf2204..cc70a0aff 100644
--- a/gstreamer/src/auto/plugin.rs
+++ b/gstreamer/src/auto/plugin.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use Error;
@@ -12,7 +12,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Plugin(Object<ffi::GstPlugin>): Object;
+    pub struct Plugin(Object<ffi::GstPlugin, ffi::GstPluginClass>): Object;
 
     match fn {
         get_type => || ffi::gst_plugin_get_type(),
diff --git a/gstreamer/src/auto/preset.rs b/gstreamer/src/auto/preset.rs
index 338bf8e7d..753045cca 100644
--- a/gstreamer/src/auto/preset.rs
+++ b/gstreamer/src/auto/preset.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use ffi;
@@ -10,7 +10,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Preset(Object<ffi::GstPreset>);
+    pub struct Preset(Object<ffi::GstPreset, ffi::GstPresetInterface>);
 
     match fn {
         get_type => || ffi::gst_preset_get_type(),
diff --git a/gstreamer/src/auto/proxy_pad.rs b/gstreamer/src/auto/proxy_pad.rs
index 19369798c..c82525517 100644
--- a/gstreamer/src/auto/proxy_pad.rs
+++ b/gstreamer/src/auto/proxy_pad.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use Object;
@@ -12,7 +12,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct ProxyPad(Object<ffi::GstProxyPad>): Pad, Object;
+    pub struct ProxyPad(Object<ffi::GstProxyPad, ffi::GstProxyPadClass>): Pad, Object;
 
     match fn {
         get_type => || ffi::gst_proxy_pad_get_type(),
diff --git a/gstreamer/src/auto/stream.rs b/gstreamer/src/auto/stream.rs
index d8d93c363..bfb1fe1e3 100644
--- a/gstreamer/src/auto/stream.rs
+++ b/gstreamer/src/auto/stream.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use Caps;
@@ -19,7 +19,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct Stream(Object<ffi::GstStream>): Object;
+    pub struct Stream(Object<ffi::GstStream, ffi::GstStreamClass>): Object;
 
     match fn {
         get_type => || ffi::gst_stream_get_type(),
diff --git a/gstreamer/src/auto/stream_collection.rs b/gstreamer/src/auto/stream_collection.rs
index 434b851d0..bede9e36b 100644
--- a/gstreamer/src/auto/stream_collection.rs
+++ b/gstreamer/src/auto/stream_collection.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use Object;
@@ -17,7 +17,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct StreamCollection(Object<ffi::GstStreamCollection>): Object;
+    pub struct StreamCollection(Object<ffi::GstStreamCollection, ffi::GstStreamCollectionClass>): Object;
 
     match fn {
         get_type => || ffi::gst_stream_collection_get_type(),
diff --git a/gstreamer/src/auto/system_clock.rs b/gstreamer/src/auto/system_clock.rs
index 50b870767..86b064f61 100644
--- a/gstreamer/src/auto/system_clock.rs
+++ b/gstreamer/src/auto/system_clock.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use Clock;
@@ -20,7 +20,7 @@ use std::mem::transmute;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct SystemClock(Object<ffi::GstSystemClock>): Clock, Object;
+    pub struct SystemClock(Object<ffi::GstSystemClock, ffi::GstSystemClockClass>): Clock, Object;
 
     match fn {
         get_type => || ffi::gst_system_clock_get_type(),
diff --git a/gstreamer/src/auto/tag_setter.rs b/gstreamer/src/auto/tag_setter.rs
index 6cace1da0..34bb69e04 100644
--- a/gstreamer/src/auto/tag_setter.rs
+++ b/gstreamer/src/auto/tag_setter.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use Element;
@@ -14,7 +14,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct TagSetter(Object<ffi::GstTagSetter>): Element, Object;
+    pub struct TagSetter(Object<ffi::GstTagSetter, ffi::GstTagSetterInterface>): Element, Object;
 
     match fn {
         get_type => || ffi::gst_tag_setter_get_type(),
diff --git a/gstreamer/src/auto/toc_setter.rs b/gstreamer/src/auto/toc_setter.rs
index 15fa2f9ba..1ba611402 100644
--- a/gstreamer/src/auto/toc_setter.rs
+++ b/gstreamer/src/auto/toc_setter.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use Element;
@@ -13,7 +13,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct TocSetter(Object<ffi::GstTocSetter>): Element, Object;
+    pub struct TocSetter(Object<ffi::GstTocSetter, ffi::GstTocSetterInterface>): Element, Object;
 
     match fn {
         get_type => || ffi::gst_toc_setter_get_type(),
diff --git a/gstreamer/src/auto/u_r_i_handler.rs b/gstreamer/src/auto/u_r_i_handler.rs
index 6e75159ec..d260e6594 100644
--- a/gstreamer/src/auto/u_r_i_handler.rs
+++ b/gstreamer/src/auto/u_r_i_handler.rs
@@ -1,4 +1,4 @@
-// This file was generated by gir (94e079d) from gir-files (???)
+// This file was generated by gir (0409d73) from gir-files (???)
 // DO NOT EDIT
 
 use Error;
@@ -12,7 +12,7 @@ use std::mem;
 use std::ptr;
 
 glib_wrapper! {
-    pub struct URIHandler(Object<ffi::GstURIHandler>);
+    pub struct URIHandler(Object<ffi::GstURIHandler, ffi::GstURIHandlerInterface>);
 
     match fn {
         get_type => || ffi::gst_uri_handler_get_type(),