code: def parse_xml(path):
      if not os.path.exists(path):
          return None
      et = etree.parse(path)
      rt = et.getroot()
      return rt
  
imports: import argparse
  import json
  import os
  import random
  import tarfile
  import tempfile
  from tqdm import tqdm
label_desc: Use image node_id 1 for calling a global function with example usage: parse_xml(path) and returns: rt, None