 None prompt_embeds: Optional = None negative_prompt_embeds: Optional = None prompt_attention_mask: Optional = None negative_prompt_attention_mask: Optional = None clean_caption: bool = False max_sequence_length: int = 120 **kwargs  )   Parameters   prompt (str or List[str], optional) —
prompt to be encoded   negative_prompt (str or List[str], optional) —
The prompt not to guide the image generation. If not defined, one has to pass negative_pro