s attention layer. If not given, cross-attention defaults to
self-attention.   timestep ( torch.LongTensor, optional) —
Used to indicate denoising step. Optional timestep to be applied as an embedding in AdaLayerNorm.   class_labels ( torch.LongTensor of shape (batch size, num classes), optional) —
Used to indicate class labels conditioning. Optional class labels to be applied as an embedding in
AdaLayerZeroNorm.   num_frames (int, optional, de