transformers gguf merge mergekit lazymergekit MysticFoxMagic/HeatherSpell-7b ichigoberry/pandafish-2-7b-32k en base_model:MysticFoxMagic/PandafishHeatherReReloaded base_model:quantized:MysticFoxMagic/PandafishHeatherReReloaded endpoints_compatible region:us