code: def element_should_be_disabled(self, locator, loglevel='INFO'):
          
          if self._element_find(locator, True, True).is_enabled():
              self.log_source(loglevel)
              raise AssertionError("Element '%s' should be disabled "
                                   "but did not" % locator)
          self._info("Element '%s' is disabled ." % locator)
docs: Verifies that element identified with locator is disabled.
  
          Key attributes for arbitrary elements are `id` and `name`. See
          `introduction` for details about locating elements.