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.
  The call function to the pipeline for generation.  Example:   Copied >>> from diffusers import DiffusionPipeline

>>> # load model and scheduler
>>> ldm = DiffusionPipeline.from_pretrained("CompVis/ldm-text2im-large-256")

>>> # run pipeline in inference (sample random noise and denois