The VQGAN model to be used for decoder image generation pipeline.
feature_extractor ([`~transformers.CLIPImageProcessor`]):
Model that extracts features from generated images to be used as inputs for the `image_encoder`.
image_encoder ([`CLIPVisionModelWithProjection`]):
Frozen CLIP image-encoder ([clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14)).
prior_prior (`StableCascadeUNet`):
The prior model to be used for prior pipeline.
prior_scheduler (`DDPMWuerstchenScheduler`):