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Pull Request
Description
This PR merges the implementation of mini-batch sampling. This solves the torch problem with redundant iteration over the identical tensors. Also, it implements hyperparameter tuning and action changes as a result of the discussion between @kim-mskw and @adiwied.
This now results in stable single-unit learning with the PPO
Changes Proposed
Testing
Algorithm tested with example_02a local and in docker
Checklist
Not applicable yet as we only merge to branch on assume not yet main.