code: def get_content(
      cls,
      abspath: str,
      start: Optional[int] = None,
      end: Optional[int] = None,
  ):
      _LOGGER.debug("MediaFileHandler: GET %s", abspath)
  
      try:
          # abspath is the hash as used `get_absolute_path`
          media_file = cls._storage.get_file(abspath)
      except Exception:
          _LOGGER.error("MediaFileHandler: Missing file %s", abspath)
          return None
  
      _LOGGER.debug(
          "MediaFileHandler: Sending %s file %s",
          media_file.mimetype,
          abspath,
      )
  
      # If there is no start and end, just return the full content
      if start is None and end is None:
          return media_file.content
  
      if start is None:
          start = 0
      if end is None:
          end = len(media_file.content)
  
      # content is bytes that work just by slicing supplied by start and end
      return media_file.content[start:end]
  
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 8 for calling the MediaFileHandler obj's underlying member method code with example usage: obj.get_content(cls, abspath, start, end) and returns: media_file, media_file, None