Airflow2.3.2 is incompatible

[william081117]

When "scheduler_failover_controller start " is executed in terminal, the following exception is thrown:
Traceback (most recent call last):
File "/home/bigai/miniconda2/envs/airflow_env/bin/scheduler_failover_controller", line 7, in
exec(compile(f.read(), file, 'exec'))
File "/home/bigai/airflow_ha/airflow-scheduler-failover-controller-master/scheduler_failover_controller/bin/scheduler_failover_controller", line 7, in
args.func(args)
File "/home/bigai/airflow_ha/airflow-scheduler-failover-controller-master/scheduler_failover_controller/bin/cli.py", line 92, in start
scheduler_nodes_in_cluster, poll_frequency, metadata_service, emailer, failover_controller = get_all_scheduler_failover_controller_objects()
File "/home/bigai/airflow_ha/airflow-scheduler-failover-controller-master/scheduler_failover_controller/bin/cli.py", line 26, in get_all_scheduler_failover_controller_objects
metadata_service = build_metadata_service(configuration, logger)
File "/home/bigai/airflow_ha/airflow-scheduler-failover-controller-master/scheduler_failover_controller/app.py", line 12, in build_metadata_service
logger
File "/home/bigai/airflow_ha/airflow-scheduler-failover-controller-master/scheduler_failover_controller/metadata/sql_metadata_service.py", line 28, in init
self.engine = create_engine(sql_alchemy_conn, **engine_args)
File "", line 2, in create_engine
File "/home/bigai/miniconda2/envs/airflow_env/lib/python3.7/site-packages/sqlalchemy/util/deprecations.py", line 298, in warned
return fn(*args, **kwargs)
File "/home/bigai/miniconda2/envs/airflow_env/lib/python3.7/site-packages/sqlalchemy/engine/create.py", line 520, in create_engine
u, plugins, kwargs = u._instantiate_plugins(kwargs)
AttributeError: 'NoneType' object has no attribute '_instantiate_plugins'

Here's my solution: vi airflow-scheduler-failover-controller-master/scheduler_failover_controller/configuration.py
modify this code:
120 def get_sql_alchemy_conn(self):
121 # Airflow 2.3版本SQL_ALCHEMY_CONN配置在database片段中
122 return self.get_config("database", "SQL_ALCHEMY_CONN")
123 #return self.get_config("core", "SQL_ALCHEMY_CONN")

Because the airflow.cfg format changes!
Can you retrofit this piece of code?