code: def connect_entry_signals():
      
      post_save.connect(
          ping_directories_handler, sender=Entry,
          dispatch_uid=ENTRY_PS_PING_DIRECTORIES)
      post_save.connect(
          ping_external_urls_handler, sender=Entry,
          dispatch_uid=ENTRY_PS_PING_EXTERNAL_URLS)
      post_save.connect(
          flush_similar_cache_handler, sender=Entry,
          dispatch_uid=ENTRY_PS_FLUSH_SIMILAR_CACHE)
      post_delete.connect(
          flush_similar_cache_handler, sender=Entry,
          dispatch_uid=ENTRY_PD_FLUSH_SIMILAR_CACHE)
docs: Connect all the signals on Entry model.