 Can be one of
DDPMScheduler, or DDIMScheduler.    Pipeline for image generation. This model inherits from DiffusionPipeline. Check the superclass documentation for the generic methods
implemented for all pipelines (downloading, saving, running on a particular device, etc.).  __call__  < source > ( batch_size: int = 1 generator: Union = None num_inference_steps: int = 1000 output_type: Optional = 'pil' return_dict: bool = True  ) → ImagePipelin