 class.   Returns 
~pipelines.stable_diffusion.StableDiffusionXLPipelineOutput or tuple
  
~pipelines.stable_diffusion.StableDiffusionXLPipelineOutput if return_dict is True, otherwise a
tuple. tuple. When returning a tuple, the first element is a list with the generated images.
  Function invoked when calling the pipeline for generation.  Examples:   Copied >>> import torch
>>> from diffusers import StableDiffusionXLInpaintPipeline
>>> from di