Is there a way to add a private function that isn't exposed/accessible via URL to a controller? I imagine there is a way to do this with routes, and I know it can be done with modules; however, I have only a single, short method that is repeated in multiple actions in the same controller and do not see it being enough of a reason to give it its own module. In other words, it's repeated code in each action, but the code is short.
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