code: def convert(self):
      config = self.configuration.get_config()
      data_dir = config.env.data_dir
  
      if self.args.mmf_data_folder:
          data_dir = self.args.mmf_data_folder
  
      bypass_checksum = False
      if self.args.bypass_checksum:
          bypass_checksum = bool(self.args.bypass_checksum)
  
      print(f"Data folder is {data_dir}")
      print(f"Zip path is {self.args.zip_file}")
  
      base_path = os.path.join(
          data_dir, "datasets", "hateful_memes", "defaults"
      )
  
      images_path = os.path.join(base_path, "images")
      PathManager.mkdirs(images_path)
  
      move_dir = False
      if self.args.move:
          move_dir = bool(self.args.move)
  
      if not bypass_checksum:
          self.checksum(self.args.zip_file, self.POSSIBLE_CHECKSUMS)
  
      src = self.args.zip_file
      dest = images_path
      if move_dir:
          print(f"Moving {src}")
          move(src, dest)
      else:
          print(f"Copying {src}")
          copy(src, dest)
  
      print(f"Unzipping {src}")
      self.decompress_zip(
          dest, fname=os.path.basename(src), password=self.args.password
      )
  
      phase_one = self.assert_files(images_path)
  
      annotations_path = os.path.join(base_path, "annotations")
      PathManager.mkdirs(annotations_path)
      annotations = (
          self.JSONL_PHASE_ONE_FILES
          if phase_one is True
          else self.JSONL_PHASE_TWO_FILES
      )
  
      for annotation in annotations:
          print(f"Moving {annotation}")
          src = os.path.join(images_path, "data", annotation)
          dest = os.path.join(annotations_path, annotation)
          move(src, dest)
  
      images = self.IMAGE_FILES
  
      for image_file in images:
          src = os.path.join(images_path, "data", image_file)
          if PathManager.exists(src):
              print(f"Moving {image_file}")
          else:
              continue
          dest = os.path.join(images_path, image_file)
          move(src, dest)
          if src.endswith(".tar.gz"):
              decompress(dest, fname=image_file, delete_original=False)
  
file_path: mmf/mmf_cli/hm_convert.py
imports: import argparse
  import hashlib
  import os
  import subprocess
  import warnings
  import zipfile
  from mmf.utils.configuration import Configuration
  from mmf.utils.download import copy, decompress, move
  from mmf.utils.file_io import PathManager
label_desc: Use image node_id 4 for calling the HMConverter obj's underlying member method code with example usage: obj.convert() without return types