[DE-4688] return processed_url for slice.items_and_annotations_generator - client (#443)

* [DE-4688] return processed_url for slice.items_and_annotations_generator - client

* Trigger pipeline

* Trigger pipeline

Author: daveguo-scale

nucleus/slice.py

@@ -410,9 +410,13 @@ def append(
 
     def items_and_annotation_generator(
         self,
+        use_mirrored_images: bool = False,
     ) -> Iterable[Dict[str, Union[DatasetItem, Dict[str, List[Annotation]]]]]:
         """Provides a generator of all DatasetItems and Annotations in the slice.
 
+        Args:
+            use_mirrored_images: If True, returns the location of the mirrored image hosted in Scale S3. Useful when the original image is no longer available.
+
         Returns:
             Generator where each element is a dict containing the DatasetItem
             and all of its associated Annotations, grouped by type (e.g. box).
@@ -436,6 +440,7 @@ def items_and_annotation_generator(
             endpoint=f"slice/{self.id}/exportForTrainingPage",
             result_key=EXPORT_FOR_TRAINING_KEY,
             page_size=10000,  # max ES page size
+            chip=use_mirrored_images,
         )
         for data in json_generator:
             for ia in convert_export_payload([data], has_predictions=False):