code: def save_xml(self):
      f = open(self.xml_name, "w")
      self.doc.writexml(f, addindent="\t", newl="\n")
      f.close()
  
file_path: deep-learning-for-image-processing/others_project/trans_widerface_to_xml/create_xml.py
imports: import copy
  import os
  from xml.dom import minidom
label_desc: Use image node_id 5 for calling the XMLGenerator obj's underlying member method code with example usage: obj.save_xml() without return types