def step()

in multiagent/environment.py [0:0]


    def step(self, action_n, time):
        obs_n = []
        reward_n = []
        done_n = []
        info_n = {'n': []}
        i = 0
        for env in self.env_batch:
            obs, reward, done, _ = env.step(action_n[i:(i+env.n)], time)
            i += env.n
            obs_n += obs
            # reward = [r / len(self.env_batch) for r in reward]
            reward_n += reward
            done_n += done
        return obs_n, reward_n, done_n, info_n