Use more clear naming of hyperparameters

https://github.com/DeepL2/Trainer/blob/55f2633113e3fcc54985d9b0fd5539904ea5cadd/trainer/evaluation.py#L11-L14

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###### This issue was generated by [todo](https://todo.jasonet.co) based on a `TODO` comment in 55f2633113e3fcc54985d9b0fd5539904ea5cadd. It&#x27;s been assigned to @coord-e because they committed the code.