code: def _find_all_step_methods(self):
          
          steps = ([method for method in dir(self) if callable(getattr(self, method)) and
                    re.match(r'_step\d+\d+.*', method)])
          steps = sorted(steps)
          for step in steps:
              self._steps.append(getattr(self, step))
docs: Finds all _step<n> methods where n is an integer in this class.