code: def test_get_agent_spec(self):
      agent_indices = ["a", "99", "Z"]
      spec = multiagent_fakes.make_multiagent_environment_spec(
          agent_indices
      )
      for agent_id in spec.actions.keys():
          single_agent_spec = multiagent_utils.get_agent_spec(
              spec, agent_id=agent_id
          )
          expected_spec = specs.EnvironmentSpec(
              actions=spec.actions[agent_id],
              discounts=spec.discounts,
              observations=spec.observations[agent_id],
              rewards=spec.rewards[agent_id],
          )
          self.assertEqual(single_agent_spec, expected_spec)
  
file_path: acme/acme/multiagent/utils_test.py
imports: from acme import specs
  from acme.multiagent import utils
  from acme.testing import fakes
  from acme.testing import multiagent_fakes
  import dm_env
  from absl.testing import absltest
label_desc: Use image node_id 1 for calling the UtilsTest obj's underlying member method code with example usage: obj.test_get_agent_spec() without return types