_prompt_embeds (torch.FloatTensor, optional) —
Pre-generated text embeddings from the GPT2 langauge model. Can be used to easily tweak text inputs,
e.g. prompt weighting. If not provided, text embeddings will be generated from prompt input
argument.   negative_generated_prompt_embeds (torch.FloatTensor, optional) —
Pre-generated negative text embeddings from the GPT2 language model. Can be used to easily tweak text
inputs, e.g. prompt weighting