ype (str, optional, defaults to "pil") —
The output format of the generate image. Choose between: "pil" (PIL.Image.Image), "np"
(np.array) or "pt" (torch.Tensor).   return_dict (bool, optional, defaults to True) —
Whether or not to return a ImagePipelineOutput instead of a plain tuple.   Returns 
ImagePipelineOutput or tuple
    Function invoked when calling the pipeline for generation.  Examples:   Copied >>> from diffusers.pipelines import Bl