code: def init(
      self,
      name: str,
      model_dir: str,
      conf: Dict[str, str],
      planner: Any,
      **kwargs,
  ):
      super().init(name, model_dir, conf, planner, **kwargs)
  
      # Labels
      self.labels = {
          "C1": 1,
          "C2": 2,
          "C3": 3,
          "C4": 4,
          "C5": 5,
          "C6": 6,
          "C7": 7,
          "Th1": 8,
          "Th2": 9,
          "Th3": 10,
          "Th4": 11,
          "Th5": 12,
          "Th6": 13,
          "Th7": 14,
          "Th8": 15,
          "Th9": 16,
          "Th10": 17,
          "Th11": 18,
          "Th12": 19,
          "L1": 20,
          "L2": 21,
          "L3": 22,
          "L4": 23,
          "L5": 24,
      }
  
      # Model Files
      self.path = [
          os.path.join(
              self.model_dir, f"pretrained_{name}.pt"
          ),  # pretrained
          os.path.join(self.model_dir, f"{name}.pt"),  # published
      ]
  
      # Download PreTrained Model
      if strtobool(self.conf.get("use_pretrained_model", "true")):
          url = f"{self.conf.get('pretrained_path', self.PRE_TRAINED_PATH)}"
          url = f"{url}/radiology_segmentation_segresnet_vertebra.pt"
          download_file(url, self.path[0])
  
      self.target_spacing = (1.0, 1.0, 1.0)  # target space for image
      self.roi_size = (128, 128, 96)
  
      # Network
      self.network = SegResNet(
          spatial_dims=3,
          in_channels=2,
          out_channels=2,
          init_filters=32,
          blocks_down=(1, 2, 2, 4),
          blocks_up=(1, 1, 1),
          dropout_prob=0.2,
      )
  
file_path: MONAILabel/sample-apps/radiology/lib/configs/segmentation_vertebra.py
imports: import logging
  import os
  from typing import Any, Dict, Optional, Union
  import lib.infers
  import lib.trainers
  from monai.networks.nets import SegResNet
  from monailabel.interfaces.config import TaskConfig
  from monailabel.interfaces.tasks.infer_v2 import InferTask
  from monailabel.interfaces.tasks.train import TrainTask
  from monailabel.utils.others.generic import download_file, strtobool
label_desc: Use image node_id 1 for calling the SegmentationVertebra obj's underlying member method code with example usage: obj.init(name, model_dir, conf, planner) without return types