##### 1. `time` at the third dimension of the input tensor `video`: https://github.com/lucidrains/lumiere-pytorch/blob/main/lumiere_pytorch/lumiere.py#L569 ##### 2. `time` as the input parameter passed into `KarrasUnet`'s method `forward`: https://github.com/lucidrains/lumiere-pytorch/blob/main/README.md#usage https://github.com/lucidrains/denoising-diffusion-pytorch/blob/main/denoising_diffusion_pytorch/karras_unet.py#L560