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Description
What happened + What you expected to happen
I am not sure if this is a bug or my workflow is wrong. I currently initialized a PPOConfig object. PPO only accepts lambda_ not lambda, but it never assigns lambda_ to self.lambda_, and AlgorithmConfig will always refract lambda_ to lambda, and there are no argument in AlgorithmConfig for specifying lambda_. As a result, there is no way for tune to tune lambda_ or lambda.
Versions / Dependencies
ray 2.0.0
Reproduction script
As above
Issue Severity
High: It blocks me from completing my task.