eturned, 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 PNDMPipeline

>>> # load model and scheduler
>>> pndm = PNDMPipeline.from_pretrained("google/ddpm-cifar10-32")

>>> # run pipeline in inference (sample random noise and denoise)
>>> image = pndm().images[0]

>>> # save image
>>> image.save("pndm_gener