[D] Evaluation of an LLM on MMLU and other benchmarks

How do you evaluate Large Language Models (LLMs) on the MMLU and other benchmarks without writing a lot of prompts and all?
Is there a repository that offers few-shot learning, chain-of-thought (CoT), and other techniques in a user-friendly format, allowing for easy integration and evaluation of an LLM?
currently developing an 'easy eval' module. I'm checking to see if there's anything similar already available.

benchmarks easy evaluation few-shot few-shot learning format integration language language models large language large language models llm llms machinelearning mmlu prompts thought writing