code: def test_add_path_dtype(self):
      env = DummyDiscreteEnv()
      obs = env.reset()
      replay_buffer = PathBuffer(capacity_in_transitions=3)
      replay_buffer.add_path(
          {
              "observations": np.array([obs]),
              "actions": np.array([[env.action_space.sample()]]),
          }
      )
      sample = replay_buffer.sample_transitions(1)
      sample_obs = sample["observations"]
      sample_action = sample["actions"]
  
      assert sample_obs.dtype == env.observation_space.dtype
      assert sample_action.dtype == env.action_space.dtype
  
file_path: garage/tests/garage/replay_buffer/test_path_buffer.py
imports: import akro
  import numpy
  import pytest
  from garage import EnvSpec, EpisodeBatch, StepType
  from garage.replay_buffer import PathBuffer
  from tests.fixtures.envs.dummy import DummyDiscreteEnv
label_desc: Use image node_id 1 for calling the TestPathBuffer obj's underlying member method code with example usage: obj.test_add_path_dtype() without return types