transformers safetensors vlm feature-extraction image-captioning visual-question-answering image-to-text custom_code en dataset:X2FD/LVIS-Instruct4V dataset:BAAI/SVIT dataset:HuggingFaceH4/ultrachat_200k dataset:MMInstruction/VLFeedback dataset:zhiqings/LLaVA-Human-Preference-10K license:apache-2.0 region:us