transformers safetensors gemma feature-extraction merge mergekit lazymergekit wandb/gemma-2b-zephyr-dpo MAISAAI/gemma-2b-coder base_model:MAISAAI/gemma-2b-coder base_model:merge:MAISAAI/gemma-2b-coder base_model:wandb/gemma-2b-zephyr-dpo base_model:merge:wandb/gemma-2b-zephyr-dpo license:apache-2.0 text-generation-inference endpoints_compatible region:us