code: def prepare(self):
      api = HfApi(token=self.token)
      for _file in self.concept_images:
          if self.local:
              self._save_concept_images(_file)
          else:
              self._upload_concept_images(_file, api)
  
      if self.local:
          self._save_concept_prompts()
      else:
          self._upload_concept_prompts(api)
  
      if self.local:
          return f"{self.project_name}/autotrain-data"
      return f"{self.username}/autotrain-data-{self.project_name}"
  
file_path: autotrain-advanced/src/autotrain/preprocessor/dreambooth.py
imports: import io
  import json
  import os
  from dataclasses import dataclass
  from typing import Any, List
  from huggingface_hub import HfApi, create_repo
  from autotrain import logger
label_desc: Use image node_id 6 for calling the DreamboothPreprocessor obj's underlying member method code with example usage: obj.prepare() and returns: self, str, self, self, str