NewActionTagger creates a ActionTagger decorator.

NewKeyTagger creates a KeyTagger decorator.

NewLogging creates a Logging decorator.

NewRecovery creates a Recovery decorator.

NewSavepoint creates a Savepoint decorator, but you must call OnCheck/OnDeliver so it will be triggered.

ActionKey is used by ActionTagger as the Key in the Tag it appends.

ActionTagger will inspect the message being executed and add a tag `action = msg.Path()`.

KeyTagger is a decorate that records all Set/Delete operations performed by it's children and adds all those keys as DeliverTx tags.

Logging is a decorator to log messages as they pass through.

Recovery is a decorator to recover from panics in transactions, so we can log them as errors.

Savepoint will isolate all data inside of the call, and commit/rollback to savepoint based on if error.