 caption before creating embeddings. Requires beautifulsoup4 and ftfy to
be installed. If the dependencies are not installed, the embeddings will be created from the raw
prompt.   Returns 
~pipelines.stable_diffusion.IFPipelineOutput or tuple
  
~pipelines.stable_diffusion.IFPipelineOutput if return_dict is True, otherwise a tuple. When returning a tuple, the first element is a list with the generated images, and the second element is a list of