code: def startDocument(self):
      self._write(
          '<?xml version="1.0" encoding="%s"?>\n' % self._encoding
      )
  
imports: import os, urllib.parse, urllib.request
  import io
  import codecs
  from .None import handler
  from .None import xmlreader
label_desc: Use image node_id 4 for calling the XMLGenerator obj's underlying member method code with example usage: obj.startDocument() without return types