
`ensure_formula_installed!` requires the `Formula` class to be loaded before being called to work properly. Let's guarantee that instead by implementing it as an instance method of the `Formula` class. See discussion at #20358.
`ensure_formula_installed!` requires the `Formula` class to be loaded before being called to work properly. Let's guarantee that instead by implementing it as an instance method of the `Formula` class. See discussion at #20358.