code: def __init__(self, files):
      self.files = files
      self._line_count = sum(
          sum(1 for line in open(file, "r")) for file in files
      )
  
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 1 to create a new ClassificationGenerator object  with example: obj = ClassificationGenerator(files)