implement undo hijack for SDXL

        ldm.modules.diffusionmodules.openaimodel.UNetModel.forward = sd_unet.UNetModel_forward

    def undo_hijack(self, m):

        if type(m.cond_stage_model) == sd_hijack_xlmr.FrozenXLMREmbedderWithCustomWords:

        conditioner = getattr(m, 'conditioner', None)

        if conditioner:

            for i in range(len(conditioner.embedders)):

                embedder = conditioner.embedders[i]

                if isinstance(embedder, (sd_hijack_open_clip.FrozenOpenCLIPEmbedderWithCustomWords, sd_hijack_open_clip.FrozenOpenCLIPEmbedder2WithCustomWords)):

                    embedder.wrapped.model.token_embedding = embedder.wrapped.model.token_embedding.wrapped

                    conditioner.embedders[i] = embedder.wrapped

                if isinstance(embedder, sd_hijack_clip.FrozenCLIPEmbedderForSDXLWithCustomWords):

                    embedder.wrapped.transformer.text_model.embeddings.token_embedding = embedder.wrapped.transformer.text_model.embeddings.token_embedding.wrapped

                    conditioner.embedders[i] = embedder.wrapped

            if hasattr(m, 'cond_stage_model'):

                delattr(m, 'cond_stage_model')

        elif type(m.cond_stage_model) == sd_hijack_xlmr.FrozenXLMREmbedderWithCustomWords:

            m.cond_stage_model = m.cond_stage_model.wrapped

        elif type(m.cond_stage_model) == sd_hijack_clip.FrozenCLIPEmbedderWithCustomWords: