heckpoints for PIA can be found under the OpenMMLab org. These checkpoints are meant to work with any model based on Stable Diffusion 1.5  Usage example PIA works with a MotionAdapter checkpoint and a Stable Diffusion 1.5 model checkpoint. The MotionAdapter is a collection of Motion Modules that are responsible for adding coherent motion across image frames. These modules are applied after the Resnet and Attention blocks in the Stable Diffusion