code: def run_classification_model():
      from kashgari.tasks.classification import BiGRU_Model
  
      files = download_data()
      gen = ClassificationGenerator(files)
  
      model = BiGRU_Model()
      model.fit_generator(gen)
  
file_path: Kashgari/examples/custom_generator.py
imports: import os
  import linecache
  from tensorflow.keras.utils import get_file
  from kashgari.generators import ABCGenerator
label_desc: Use image node_id 2 for calling a global function with example usage: run_classification_model() without return types