code: def get_representation(self, prefix="", suffix="\n"):
          
          res = []
          if self.hidden:
              res.append(prefix + " - " + str(self._name)
                         + " : xxxxxxxx" + suffix)
          else:
              default = self.default
              if default is None:
                  default = " - "
              a = prefix + " - "
              a += str(self._name) + " : "
              if isinstance(default, types.UnicodeType):
                  a += default
              else:
                  a += str(default)
              a += suffix
              res.append(a)
          return res
docs: This method build a array that will contain the string
          representation of the current object. Every lines could be
          prefixed and suffixed.