ttention_mask: Optional = None negative_attention_mask: Optional = None  )   Parameters   prompt (str or List[str], optional) —
prompt to be encoded    Encodes the prompt into text encoder hidden states. device: (torch.device, optional):
torch device to place the resulting embeddings on
num_images_per_prompt (int, optional, defaults to 1):
number of images that should be generated per prompt
do_classifier_free_guidance (bool, optional, defaults