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* Add Nunchaku Lite single-file quantization * Support config-backed Nunchaku Lite loading * Remove Nunchaku runtime manifest metadata loading * Simplify Nunchaku compact config loading * Add Nunchaku Lite quantization tests * Document Nunchaku Lite checkpoint loading * Refine Nunchaku Lite quantization docs * Remove unused Nunchaku smooth factor original weights * Update docs/source/en/quantization/nunchaku.md Co-authored-by: sergereview[bot] <283583894+sergereview[bot]@users.noreply.github.com> * Update src/diffusers/quantizers/nunchaku/utils.py Co-authored-by: sergereview[bot] <283583894+sergereview[bot]@users.noreply.github.com> * Update src/diffusers/quantizers/nunchaku/nunchaku_quantizer.py Co-authored-by: sergereview[bot] <283583894+sergereview[bot]@users.noreply.github.com> * Address Nunchaku Lite review feedback * Update Nunchaku Lite quantizer * Rename Nunchaku Lite fp4 precision to nvfp4 * Allow torch_dtype to override Nunchaku compute dtype * Keep Nunchaku replacement modules on meta during loading * Require kernels when importing Nunchaku runtime utils * Use kernels requirement decorators for Nunchaku tests * Validate Nunchaku CUDA capability requirements * Apply suggestions from code review Co-authored-by: Sayak Paul <spsayakpaul@gmail.com> * docs: update nunchaku quantization guide * test: remove nunchaku quantization tests * fix: reject hopper for nunchaku lite * Apply suggestion from @rootonchair * docs: update nunchaku lite compile example * Apply style fixes * Apply suggestions from code review Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com> Co-authored-by: Vinh H. Pham <phamvinh257@gmail.com> * update doc to be more reasonable * fix import that requires kernels --------- Co-authored-by: sergereview[bot] <283583894+sergereview[bot]@users.noreply.github.com> Co-authored-by: Sayak Paul <spsayakpaul@gmail.com> Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com> Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>