Just hardcode the value for ENV_KEY
Just hardcode the value for ENV_KEY

Unfortunately, `ActionDispatch::Http::Parameters::PARAMETERS_KEY`
returns the `...path_parameters` key, which does not appear to
reliably contain the controller and action names.

The other option is to grab `env['action_controller.instance']`, but
that seems "even more private" to me.

enova/active_record_stats,enova/active_record_stats