Can we customize databaseStoreBackend class and how can we use that class_name CustomDatabaseStoreBackend in great_expectations.yml file?

I don’t want to expose credentials to config_variables.yml file, so I’m trying a workaround for that… I want to create a CustomDatabaseStoreBackend by inheriting databaseStoreBackend class and override credentials to my own function… is that something doable? I’m looking to make below work
class_name: ValidationsStore
class_name: CustomDatabaseStoreBackend

figured it out. can be closed.