[examples] Update module path for A2C agent in ray.
@@ -12,7 +12,7 @@ from pydantic import BaseModel, Field, validator
# Ignore import deprecation warnings from ray.
warnings.filterwarnings("ignore", category=DeprecationWarning)
-from ray.rllib.agents.a3c import A2CTrainer # noqa
+from ray.rllib.agents.a2c import A2CTrainer # noqa
from ray.rllib.agents.a3c import A3CTrainer # noqa
from ray.rllib.agents.dqn import ApexTrainer, R2D2Trainer # noqa
from ray.rllib.agents.impala import ImpalaTrainer # noqa
