docs: def step_into(self):
          """Take a forward step (into) for all active states in the state machine
          """
          logger.debug("Execution step into ...")
          self.run_to_states = []
          if self.finished_or_stopped():
              self.set_execution_mode(StateMachineExecutionStatus.FORWARD_INTO)
              self._run_active_state_machine()
          else:
              self.set_execution_mode(StateMachineExecutionStatus.FORWARD_INTO)