-generated negative text embeddings from the GPT2 language model. Can be used to easily tweak text
inputs, e.g. prompt weighting. If not provided, negative_prompt_embeds will be computed from
negative_prompt input argument.   attention_mask (torch.LongTensor, optional) —
Pre-computed attention mask to be applied to the prompt_embeds. If not provided, attention mask will
be computed from prompt input argument.   negative_attention_mask (torch.Lo