parse_bin_from_description() return value is not nullable, except for errors

Gir_Gst.toml

@@ -960,6 +960,11 @@ status = "generate"
         [object.function.return]
         nullable = false
 
+    [[object.function]]
+    name = "parse_bin_from_description"
+        [object.function.return]
+        nullable = false
+
 [[object]]
 name = "Gst.StateChangeReturn"
 status = "generate"

gstreamer/src/auto/functions.rs

@@ -117,7 +117,7 @@ pub fn debug_unset_threshold_for_name(name: &str) {
     }
 }
 
-pub fn parse_bin_from_description(bin_description: &str, ghost_unlinked_pads: bool) -> Result<Option<Bin>, Error> {
+pub fn parse_bin_from_description(bin_description: &str, ghost_unlinked_pads: bool) -> Result<Bin, Error> {
     assert_initialized_main_thread!();
     unsafe {
         let mut error = ptr::null_mut();