sors specified in the list
will be passed as callback_kwargs argument. You will only be able to include variables listed in the
._callback_tensor_inputs attribute of your pipeine 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 generate