Spandrel: PyTorch Model Architecture Support

Spandrel is a Python library that provides support for loading and running pre-trained PyTorch models, particularly those used in AI Super-Resolution, restoration, and inpainting. It automatically detects the model architecture and hyperparameters from various model file types, including `.pth`, `.pt`, `.ckpt`, and `.safetensors`. The current version is 0.4.2, and it follows an active release cadence with updates often accompanied by the `spandrel_extra_arches` package for models with restrictive licenses.