code: def model_name(self):
      name = "catboost_"
      use_cpu = "gpu_" if self.use_gpu else "cpu_"
      nr = str(self.num_rounds) + "_"
      return name + use_cpu + nr + str(self.max_depth)
  
file_path: thundergbm/python/benchmarks/model/catboost_model.py
imports: from model.base_model import BaseModel
  import numpy
  import catboost
  import time
  import utils.data_utils
  from model.datasets import Dataset
label_desc: Use image node_id 5 for calling the CatboostModel obj's underlying member method code with example usage: obj.model_name() and returns: unknown