t: Union = None image: Union = None strength: float = 0.5 num_inference_steps: int = 12 guidance_scale: float = 10.0 negative_prompt: Union = None num_images_per_prompt: Optional = 1 generator: Optional = None prompt_embeds: Optional = None encoder_hidden_states: Optional = None negative_prompt_embeds: Optional = None negative_encoder_hidden_states: Optional = None output_type = 'pil' return_dict: bool = True callback: Optional = None callback_