he generic methods
implemented for all pipelines (downloading, saving, running on a particular device, etc.).  __call__  < source > ( prompt: Union height: Optional = None width: Optional = None num_inference_steps: Optional = 50 guidance_scale: Optional = 1.0 eta: Optional = 0.0 generator: Union = None latents: Optional = None output_type: Optional = 'pil' return_dict: bool = True **kwargs  ) → ImagePipelineOutput or tuple  Parameters   prompt