docs: def parse(self, xmltext):
          """
          Parse a string containing LEMS XML text.
  
          @param xmltext: String containing LEMS XML formatted text.
          @type xmltext: str
          """
          
          xml = LEMSXMLNode(xe.XML(xmltext))
  
          if xml.ltag != 'lems' and xml.ltag != 'neuroml':
              raise ParseError('<Lems> expected as root element (or even <neuroml>), found: {0}'.format(xml.ltag))
          '''
          if xml.ltag == 'lems':
              if 'description' in xml.lattrib:
                  self.description = xml.lattrib['description']
          '''
  
          self.process_nested_tags(xml)