AHA is an incident management & communication framework to provide real-time alert customers when there are active AWS event(s). For customers with AWS Organizations, customers can get aggregated active account level events of all the accounts in the Organization. Customers not using AWS Organizations still benefit alerting at the account level.
Issue https://github.com/aws-samples/aws-health-aware/issues/77 , Closed events with empty endTime Issue https://github.com/aws-samples/aws-health-aware/issues/70 , Chime message max size
Description of changes: Pulling fixes for Issues 70&77, logging method, client caching, general cleanup of imports
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