code: def validate_absolute_path(
      self, root: str, absolute_path: str
  ) -> str:
      try:
          self._storage.get_file(absolute_path)
      except MediaFileStorageError:
          _LOGGER.error(
              "MediaFileHandler: Missing file %s", absolute_path
          )
          raise tornado.web.HTTPError(404, "not found")
  
      return absolute_path
  
file_path: streamlit/lib/streamlit/web/server/media_file_handler.py
imports: from typing import Optional
  from urllib.parse import quote
  import tornado.web
  from streamlit.logger import get_logger
  from streamlit.runtime.media_file_storage import MediaFileKind, MediaFileStorageError
  from streamlit.runtime.memory_media_file_storage import MemoryMediaFileStorage, get_extension_for_mimetype
  from streamlit.web.server import allow_cross_origin_requests
label_desc: Use image node_id 4 for calling the MediaFileHandler obj's underlying member method code with example usage: obj.validate_absolute_path(root, absolute_path) and returns: absolute_path