umentation for the generic methods the
library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.)  __call__  < source > ( prompt: List reference_image: Image source_subject_category: List target_subject_category: List latents: Optional = None guidance_scale: float = 7.5 height: int = 512 width: int = 512 num_inference_steps: int = 50 generator: Union = None neg_prompt: Optional = '' prompt_str