old_contents: #!/usr/bin/env python
  __all__ = ['ixigua_download', 'ixigua_download_playlist']
  from .toutiao import download as toutiao_download
  from .toutiao import download_playlist as toutiao_download_playlist
  
  
  def ixigua_download(url, output_dir='.', merge=True, info_only=False, **kwargs):
      return toutiao_download(url.replace('ixigua', '365yg'))
  
  
  site_info = "ixigua.com"
  download = ixigua_download
  download_playlist = toutiao_download_playlist
new_contents: #!/usr/bin/env python
  __all__ = ['ixigua_download']
  
  from .toutiao import download as toutiao_download
  from .toutiao import download_playlist as toutiao_download_playlist
  
  
  def ixigua_download(url, output_dir='.', merge=True, info_only=False, **kwargs):
      return toutiao_download(url.replace('ixigua', '365yg'))
  
  
  site_info = "ixigua.com"
  download = ixigua_download
  download_playlist = toutiao_download_playlist
  
subject: remove undefined name (#2599)