 usually at the expense of lower image quality.   negative_prompt (str or List[str], optional) —
The prompt or prompts not to guide the image generation. Ignored when not using guidance (i.e., ignored
if decoder_guidance_scale is less than 1).   num_images_per_prompt (int, optional, defaults to 1) —
The number of images to generate per prompt.   generator (torch.Generator or List[torch.Generator], optional) —
One or a list of torch generator(s)