code: def element_content_as_string(element):
      
      if len(element) == 0:
          return element.text or ""  # Make sure, None is returned as ''
      stream = compat.StringIO()
      for childnode in element:
          stream.write(xml_to_bytes(childnode, pretty_print=False) + "\n")
          # print(xml_to_bytes(childnode, pretty_print=False), file=stream)
      s = stream.getvalue()
      stream.close()
      return s
docs: Serialize etree.Element.
  
      Note: element may contain more than one child or only text (i.e. no child
            at all). Therefore the resulting string may raise an exception, when
            passed back to etree.XML().