lback_steps: int = 1 cross_attention_kwargs: Optional = None noise_level: int = 0 image_embeds: Optional = None clip_skip: Optional = None  ) → ImagePipelineOutput or tuple  Parameters   prompt (str or List[str], optional) —
The prompt or prompts to guide the image generation. If not defined, either prompt_embeds will be
used or prompt is initialized to "".   image (torch.FloatTensor or PIL.Image.Image) —
Image or tensor representing an image b