transformers safetensors starcoder2 text-generation code conversational dataset:bigcode/self-oss-instruct-sc2-exec-filter-50k arxiv:2410.24198 base_model:bigcode/starcoder2-15b base_model:finetune:bigcode/starcoder2-15b license:bigcode-openrail-m model-index autotrain_compatible text-generation-inference endpoints_compatible region:us