To Nha Notes | March 23, 2022, 11:48 p.m.
https://docs.aws.amazon.com/mwaa/latest/userguide/configuring-dag-import-plugins.html
By default in Apache Airflow v2, plugins are configured to be "lazily" loaded using the core.lazy_load_plugins : True setting. If you're using custom plugins in Apache Airflow v2, you must add core.lazy_load_plugins : False as an Apache Airflow configuration option to load plugins at the start of each Airflow process to override the default setting.
https://docs.aws.amazon.com/mwaa/latest/userguide/samples-env-variables.html