class_docstr: Produce images read from a list of zip files. 
docstr: Args:
      zip_file (list): list of zip file paths.
docstr_tok: ["Args",":","zip_file","(","list",")",":","list","of","zip","file","paths","."]
code: def __init__(self, zip_file, shuffle=False):
      """
      Args:
          zip_file (list): list of zip file paths.
      """
      assert os.path.isfile(zip_file)
      self._file = zip_file
      self.shuffle = shuffle
      self.open()
  
imports: import argparse
  import numpy
  import os
  import zipfile
  import cv2
  from tensorpack import LMDBSerializer, MapDataComponent, RNGDataFlow
label_desc: Use image node_id 1 to create a new ImageDataFromZIPFile object from inherited base classes: RNGDataFlow with example: obj = ImageDataFromZIPFile(zip_file, shuffle)