code: def message(self):
          ''' Override this to provide failure message'''
          name = self.__class__.__name__
          return "{0} {1}".format(humanize(name),
                                  pp(*self.expectedArgs, **self.expectedKwArgs)f message(self):
          ''' Override this to provide failure message'''
          name = self.__class__.__name__
          return "{0} {1}".format(humanize(name),
                                  pp(*self.expectedArgs, **self.expectedKwArgs))
docs: Override this to provide failure message