code: def _get_parameterized_text(self, parameters):
          
          text = self.get_text('edxml').text
          done = False
          while not done:
              result = re.search(r'\$\w+', text)
              if result:
                  replacement = str(parameters[result.group()[1:]])
                  text = text.replace(result.group(), replacement)
              else:
                  done = True
          return text
docs: stub