s is fixed during training since it is used to learn a number of embeddings that are
added to the hidden states.
During inference, you can denoise for up to but not more steps than num_embeds_ada_norm.   attention_bias (bool, optional) —
Configure if the TransformerBlocks attention should contain a bias parameter.    A 2D Transformer model for image-like data.  forward  < source > ( hidden_states: Tensor encoder_hidden_states: Optional = None t