__init__() got an unexpected keyword augument 'agent'

While working on [FinRL_MultiCrypto_Trading.ipynb]: I am experiencing this issue:

[/FinRL-Meta/agents/elegantrl_models.py](https://localhost:8080/#) in get_model(self, model_name, model_kwargs)
57 if model_name not in MODELS:
58 raise NotImplementedError("NotImplementedError")
---> 59 model = Arguments(agent=agent, env=env)
60 model.if_off_policy = model_name in OFF_POLICY_MODELS
61 if model_kwargs is not None:

TypeError: __init__() got an unexpected keyword argument 'agent'