  prompt (str or List[str], optional) —
The prompt or prompts to guide image generation. If not defined, you need to pass prompt_embeds.   mask_image (PIL.Image.Image) —
Image or tensor representing an image batch to mask the generated image. White pixels in the mask are
repainted, while black pixels are preserved. If mask_image is a PIL image, it is converted to a
single channel (luminance) before use. If it’s a tensor, it should contain one c