• Pipelines are a collection of end-to-end diffusion systems that can be used out-of-the-box
• Pipelines should stay as close as possible to their original implementation
• Pipelines can include components of other library, such as text-encoders.

TODO(Patrick, Anton, Suraj)

• DDPM for unconditional image generation in pipeline_ddpm.
• DDIM for unconditional image generation in pipeline_ddim.
• PNDM for unconditional image generation in pipeline_pndm.
• Latent diffusion for text to image generation / conditional image generation in pipeline_latent_diffusion.
• Glide for text to image generation / conditional image generation in pipeline_glide.
• BDDMPipeline for spectrogram-to-sound vocoding in pipeline_bddm.
• Grad-TTS for text to audio generation / conditional audio generation in pipeline_grad_tts.