code: def criteria_text(self, sep='  ', params=False):
          
  
          s = ''
          criteria_node = self.root.find('criteria')
          if criteria_node is None:
              return s
          node_texts = []
          for node in criteria_node.getchildren():
              nt = self.get_node_text(node, depth=0, sep=sep, params=params)
              node_texts.append(nt)
          s = '\n'.join(node_texts)
          return s
docs: Get a text representation of the criteria node.
  
          :param sep: Separator used to indent the contents of the node.
          :param params: Boolean, set to True in order to display node parameters.
          :return: