def reset()

in ddppo_agents.py [0:0]


    def reset(self) -> None:
        self.test_recurrent_hidden_states = torch.zeros(
            1,
            self.actor_critic.net.num_recurrent_layers,
            self.hidden_size,
            device=self.device,
        )
        self.not_done_masks = torch.zeros(1, 1, device=self.device, dtype=torch.bool)
        self.prev_actions = torch.zeros(1, 1, dtype=torch.long, device=self.device)