ompt  < source > ( prompt: Union do_classifier_free_guidance: bool = True num_images_per_prompt: int = 1 device: Optional = None negative_prompt: Union = None prompt_embeds: Optional = None negative_prompt_embeds: Optional = None clean_caption: bool = False  )   Parameters   prompt (str or List[str], optional) —
prompt to be encoded   do_classifier_free_guidance (bool, optional, defaults to True) —
whether to use classifier free guidance or not