discarded. Mask will be converted into a bias,
which adds large negative values to the attention scores corresponding to “discard” tokens.   return_dict (bool, optional, defaults to True) —
Whether or not to return a UNet2DConditionOutput instead of a plain
tuple.   cross_attention_kwargs (dict, optional) —
A kwargs dictionary that if specified is passed along to the AttnProcessor.
added_cond_kwargs — (dict, optional):
A kwargs dictionary conta