code: def booster_json(model):
      return os.path.join(
          target_dir, "xgboost-" + version + "." + model + ".json"
      )
  
file_path: xgboost/tests/python/generate_models.py
imports: import os
  import numpy
  import xgboost
label_desc: Use image node_id 2 for calling a global function with example usage: booster_json(model) and returns: os