   prompt (str or List[str], optional) —
The prompt or prompts to guide image generation.   height (int, optional, defaults to self.unet.config.sample_size * self.vae_scale_factor) —
The height in pixels of the generated image.   width (int, optional, defaults to self.unet.config.sample_size * self.vae_scale_factor) —
The width in pixels of the generated image.   num_inference_steps (int, optional, defaults to 50) —
The number of denoising step