transformers gguf mergekit merge text-generation base_model:BeaverAI/Gemmasutra-9B-v1a base_model:merge:BeaverAI/Gemmasutra-9B-v1a base_model:BeaverAI/Gemmasutra-9B-v1b base_model:merge:BeaverAI/Gemmasutra-9B-v1b endpoints_compatible region:us conversational