def METHOD_NAME() -> dm_env.Environment:
  env_spec = specs.EnvironmentSpec(
      observations=specs.Array(shape=(10, 5), dtype=np.float32),
      actions=specs.BoundedArray(
          shape=(1,), dtype=np.float32, minimum=-100., maximum=100.),
      rewards=specs.Array(shape=(), dtype=np.float32),
      discounts=specs.BoundedArray(
          shape=(), dtype=np.float32, minimum=0., maximum=1.),
  )
  return fakes.Environment(env_spec, episode_length=10)