code: def test_last_obs_env_spec_mismatch_eps(eps_data):
      with pytest.raises(
          ValueError,
          match=(
              "last_observations must have the "
              "same number of entries"
          ),
      ):
          eps_data["last_observations"] = eps_data["last_observations"][
              :, :, :, :1
          ]
          t = EpisodeBatch(**eps_data)
          del t
  
imports: import akro
  import gym.spaces
  import numpy
  import pytest
  from garage import EnvSpec, EnvStep, EpisodeBatch, StepType, TimeStep, TimeStepBatch
label_desc: Use image node_id 7 for calling a global function with example usage: test_last_obs_env_spec_mismatch_eps(eps_data) without return types