IL.Image.Image], or List[np.ndarray]) —
Image or tensor representing an image batch to be upscaled. If it’s a tensor, it can be either a
latent output from a Stable Diffusion model or an image tensor in the range [-1, 1]. It is considered
a latent if image.shape[1] is 4; otherwise, it is considered to be an image representation and
encoded using this pipeline’s vae encoder.   num_inference_steps (int, optional, defaults to 50) —
The number of d