ImportError: cannot import name InnerObjectWrapper

Python 2.7.12,
elasticsearch 6.2.0
elasticsearch-dsl 6.1.0

from elasticsearch_dsl import InnerObjectWrapper
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: cannot import name InnerObjectWrapper

in elasticsearch-dsl 2. version, from elasticsearch_dsl import InnerObjectWrapper is not wrong, but in 6. version, it is not supported. Solve

Mar.22,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b314a6-2b5cd.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b314a6-2b5cd.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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