What does this PR do ?

Add a one line overview of what this PR aims to accomplish.

Issues

Closes #236

Usage

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# Add a code snippet demonstrating how to use this 

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• Did you write any new necessary tests?
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Additional Information

• SFT wandb: https://wandb.ai/nvidia/sft-dev-yifu?nw=ms3olj1k57f
• GRPO wandb: https://wandb.ai/nvidia/grpo-dev-yifu?nw=1utckqwtacbi