code: def voc_class_map():
      classes = sorted(
          {
              "person",
              "bird",
              "cat",
              "cow",
              "dog",
              "horse",
              "sheep",
              "aeroplane",
              "bicycle",
              "boat",
              "bus",
              "car",
              "motorbike",
              "train",
              "bottle",
              "chair",
              "diningtable",
              "pottedplant",
              "sofa",
              "tvmonitor",
          }
      )
  
      return ClassMap(classes=classes)
  
imports: import pytest
  from icevision import *
  from icevision.imports import *
  from icevision.models.torchvision import faster_rcnn, keypoint_rcnn
  from icevision.models.ross import efficientdet
  from icevision.models.ross.efficientdet.backbones import *
  import albumentations
label_desc: Use image node_id 11 for calling a global function with example usage: voc_class_map() and returns: ClassMap