[extractors] add import for UstudioEmbedIE

youtube_dl/extractor/extractors.py

@@ -851,7 +851,10 @@ from .unistra import UnistraIE
 from .urort import UrortIE
 from .usatoday import USATodayIE
 from .ustream import UstreamIE, UstreamChannelIE
-from .ustudio import UstudioIE
+from .ustudio import (
+    UstudioIE,
+    UstudioEmbedIE,
+)
 from .varzesh3 import Varzesh3IE
 from .vbox7 import Vbox7IE
 from .veehd import VeeHDIE