运行elastalert 报错如下，有人遇到过吗？跪求大佬

ERROR:root:Traceback (most recent call last):
File "/opt/elastalert-0.2.1/elastalert/elastalert.py", line 1259, in handle_rule_execution
num_matches = self.run_rule(rule, endtime, rule.get('initial_starttime'))
File "/opt/elastalert-0.2.1/elastalert/elastalert.py", line 863, in run_rule
self.set_starttime(rule, endtime)
File "/opt/elastalert-0.2.1/elastalert/elastalert.py", line 706, in set_starttime
last_run_end = self.get_starttime(rule)
File "/opt/elastalert-0.2.1/elastalert/elastalert.py", line 685, in get_starttime
_source_include=['endtime', 'rule_name'])
File "/usr/local/python/lib/python3.6/site-packages/elasticsearch-7.0.5-py3.6.egg/elasticsearch/client/utils.py", line 84, in _wrapped
return func(*args, params=params, **kwargs)
TypeError: search() got an unexpected keyword argument '_source_include'

ERROR:root:Uncaught exception running rule one: search() got an unexpected keyword argument '_source_include'