code: def __call__(self, movie_id_with_files):
      movie_id, files = movie_id_with_files
      data = set()
      for filepath in files:
          try:
              xml_object = parse_xml(filepath)
              for conversation in extract_data_from_xml(xml_object):
                  if self.use_history:
                      data.add(conversation_to_fb_format(conversation))
                  else:
                      data.add(
                          conversation_to_basic_format(conversation)
                      )
          except ET.ParseError:
              # TODO: We possibly can log these errors,
              # but I'm not sure how it would intervene with the PrograssLogger
              pass
          except Exception:
              print(
                  "Unexpected error for file %s:\n%s"
                  % (filepath, sys.exc_info()[0]),
                  file=sys.stderr,
              )
              raise
      data_str = "\n".join(data) + ("\n" if len(data) > 0 else "")
      return data_str
  
imports: import parlai.core.build_data
  import glob
  import gzip
  import multiprocessing
  import os
  import re
  import sys
  import time
  import tqdm
  import xml.etree.ElementTree
  from parlai.core.build_data import DownloadableFile
  from parlai.utils.io import PathManager
label_desc: Use image node_id 2 for calling the DataProcessor obj's underlying member method code with example usage: obj.__call__(movie_id_with_files) and returns: data_str