 < source > ( unet: bool = True vae: bool = True  )   Parameters   unet (bool, defaults to True) — To apply fusion on the UNet.   vae (bool, defaults to True) — To apply fusion on the VAE.    Disable QKV projection fusion if enabled. This API is 🧪 experimental.  StableDiffusionXLImg2ImgPipeline  class diffusers.StableDiffusionXLImg2ImgPipeline  < source > ( vae: AutoencoderKL text_encoder: CLIPTextModel text_encoder_2: CLIPTextModelWithProjecti