class_docstr: Pipeline for text-guided image to image generation using Stable Diffusion.
  
  This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods the
  library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.)
  
  Args:
      vae ([`AutoencoderKL`]):
          Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations.
      text_encoder ([`CLIPTextModel`]):
          Frozen text-encoder. Stable Diffusion uses the text portion of
          [CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModel), specifically
          the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) variant.
      tokenizer (`CLIPTokenizer`):
          Tokenizer of class
          [CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer).
      unet ([`UNet2DConditionModel`]): Conditional U-Net architecture to denoise the encoded image latents.
      scheduler ([`SchedulerMixin`]):
          A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of
          [`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`].
      safety_checker ([`StableDiffusionSafetyChecker`]):
          Classification module that estimates whether generated images could be considered offensive or harmful.
          Please, refer to the [model card](https://huggingface.co/runwayml/stable-diffusion-v1-5) for details.
      feature_extractor ([`CLIPImageProcessor`]):
          Model that extracts features from generated images to be used as inputs for the `safety_checker`.
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code: def check_inputs(
      self,
      prompt: Union[str, List[str]],
      callback_steps: int,
      negative_prompt: Optional[Union[str, List[str]]] = None,
      prompt_embeds: Optional[np.ndarray] = None,
      negative_prompt_embeds: Optional[np.ndarray] = None,
  ):
      if (callback_steps is None) or (
          callback_steps is not None
          and (
              not isinstance(callback_steps, int) or callback_steps <= 0
          )
      ):
          raise ValueError(
              f"`callback_steps` has to be a positive integer but is {callback_steps} of type"
              f" {type(callback_steps)}."
          )
  
      if prompt is not None and prompt_embeds is not None:
          raise ValueError(
              f"Cannot forward both `prompt`: {prompt} and `prompt_embeds`: {prompt_embeds}. Please make sure to"
              " only forward one of the two."
          )
      elif prompt is None and prompt_embeds is None:
          raise ValueError(
              "Provide either `prompt` or `prompt_embeds`. Cannot leave both `prompt` and `prompt_embeds` undefined."
          )
      elif prompt is not None and (
          not isinstance(prompt, str) and not isinstance(prompt, list)
      ):
          raise ValueError(
              f"`prompt` has to be of type `str` or `list` but is {type(prompt)}"
          )
  
      if (
          negative_prompt is not None
          and negative_prompt_embeds is not None
      ):
          raise ValueError(
              f"Cannot forward both `negative_prompt`: {negative_prompt} and `negative_prompt_embeds`:"
              f" {negative_prompt_embeds}. Please make sure to only forward one of the two."
          )
  
      if (
          prompt_embeds is not None
          and negative_prompt_embeds is not None
      ):
          if prompt_embeds.shape != negative_prompt_embeds.shape:
              raise ValueError(
                  "`prompt_embeds` and `negative_prompt_embeds` must have the same shape when passed directly, but"
                  f" got: `prompt_embeds` {prompt_embeds.shape} != `negative_prompt_embeds`"
                  f" {negative_prompt_embeds.shape}."
              )
  
file_path: llmga/llmga/diffusers/src/diffusers/pipelines/stable_diffusion/pipeline_onnx_stable_diffusion_img2img.py
imports: import inspect
  from typing import Callable, List, Optional, Union
  import numpy
  import PIL.Image
  import torch
  from transformers import CLIPImageProcessor, CLIPTokenizer
  from ...configuration_utils import FrozenDict
  from ...schedulers import DDIMScheduler, LMSDiscreteScheduler, PNDMScheduler
  from ...utils import PIL_INTERPOLATION, deprecate, logging
  from ..onnx_utils import ORT_TO_NP_TYPE, OnnxRuntimeModel
  from ..pipeline_utils import DiffusionPipeline
  from .None import StableDiffusionPipelineOutput
label_desc: Use image node_id 3 for calling the OnnxStableDiffusionImg2ImgPipeline obj's underlying member method code with example usage: obj.check_inputs(prompt, callback_steps, negative_prompt, prompt_embeds, negative_prompt_embeds) without return types