code: def _init_step(self):
          
          self._age += 1
          self.env.age = self._age
          self._log(logging.INFO, "")
          self._log(logging.INFO, "\t***** Step {:0>4} *****". format(self.age))
          self._log(logging.INFO, "")
          self._agents_to_act = self._get_order_agents()
          self._step_processing_time = 0.0
          self._step_start_time = time.time()
docs: Initialize next step of simulation to be run.