None guidance_scale: float = 7.5 height: int = 512 width: int = 512 num_inference_steps: int = 50 generator: Union = None neg_prompt: Optional = '' prompt_strength: float = 1.0 prompt_reps: int = 20 output_type: Optional = 'pil' return_dict: bool = True  ) → ImagePipelineOutput or tuple  Parameters   prompt (List[str]) —
The prompt or prompts to guide the image generation.   reference_image (PIL.Image.Image) —
The reference image to condition t