code: def get_model():
      return Model(["test1", "test2", "test3"])
  
file_path: detecto/detecto/tests/helpers.py
imports: import os
  import torch
  from detecto.core import Model, Dataset
  from detecto.utils import xml_to_csv, read_image
label_desc: Use image node_id 3 for calling a global function with example usage: get_model() and returns: Model