ing arguments: callback(step: int, timestep: int, latents: torch.FloatTensor).   callback_steps (int, optional, defaults to 1) —
The frequency at which the callback function is called. If not specified, the callback is called at
every step.   Returns 
ImagePipelineOutput or tuple
  
If return_dict is True, ImagePipelineOutput is returned, otherwise a tuple is
returned where the first element is a list with the generated images.
   Examples:   C