Replace data rows with global keys

Author: ovalle15

examples/annotation_import/image.ipynb

@@ -252,8 +252,8 @@
         "bbox_annotation = lb_types.ObjectAnnotation(\n",
         "  name = \"bounding_box\",  # must match your ontology feature's name\n",
         "  value = lb_types.Rectangle(\n",
-        "        start=lb_types.Point(x=977, y=1690), # Top left\n",
-        "        end=lb_types.Point(x=330, y=225), # Bottom right\n",
+        "        start=lb_types.Point(x=20, y=15), # Top left\n",
+        "        end=lb_types.Point(x=25, y=30), # Bottom right\n",
         "    )\n",
         ")\n",
         "\n",
@@ -280,8 +280,8 @@
         "bbox_with_radio_subclass_annotation = lb_types.ObjectAnnotation(\n",
         "    name=\"bbox_with_radio_subclass\",\n",
         "    value=lb_types.Rectangle(\n",
-        "        start=lb_types.Point(x=933, y=541), # Top left\n",
-        "        end=lb_types.Point(x=191, y=330), # Bottom right\n",
+        "        start=lb_types.Point(x=10, y=20), # Top left\n",
+        "        end=lb_types.Point(x=25, y=30), # Bottom right\n",
         "    ),\n",
         "    classifications=[\n",
         "    \tlb_types.ClassificationAnnotation(\n",