update hint

Author: jtsodapop

labelbox/data/serialization/ndjson/label.py

@@ -111,9 +111,9 @@ def _create_video_annotations(
 
             elif isinstance(annotation_group[0], VideoObjectAnnotation):
                 warnings.warn(
-                    "Nested classifications are not currently supported ",
-                    "for video object annotations ",
-                    "and will not import alongside the object annotations.")
+                    """Nested classifications are not currently supported
+                    for video object annotations
+                    and will not import alongside the object annotations.""")
                 segments = []
                 for start_frame, end_frame in consecutive_frames:
                     segment = []

labelbox/data/serialization/ndjson/objects.py

@@ -284,7 +284,9 @@ def to_common(annotation: "NDObjectType") -> ObjectAnnotation:
 
     @classmethod
     def from_common(
-        cls, annotation: ObjectAnnotation, data: Union[ImageData, TextData]
+        cls, annotation: Union[ObjectAnnotation,
+                               List[List[VideoObjectAnnotation]]],
+        data: Union[ImageData, TextData]
     ) -> Union[NDLine, NDPoint, NDPolygon, NDRectangle, NDMask, NDTextEntity]:
         obj = cls.lookup_object(annotation)