code: def draw(self):
          
          self.guess_header()
          self.add_left_space(
          )
          # for Texttable, elem_add a column of whitespace on the left for
          # better visual effect
          if self._title and self._descr:
              pre = self._title + '\n' + self._descr + '\n\n'
          elif self._title:
              pre = self._title + '\n\n'
          elif self._descr:
              pre = 'Empty Title' + '\n' + self._descr + '\n'
          else:
              pre = ''
          empty_line = '\n\n'
          return pre + str(Texttable.draw(self)) + empty_line
docs: generate texttable formatted string