gguf merge mergekit lazymergekit BioMistral/BioMistral-7B Nexusflow/Starling-LM-7B-beta TensorBlock GGUF base_model:johnsnowlabs/BioLing-7B-Dare base_model:quantized:johnsnowlabs/BioLing-7B-Dare license:apache-2.0 endpoints_compatible region:us conversational