`FormulaInstaller` calls `audit_installed` at install time, which
invokes methods in `FormulaCellarChecks`. One of these methods makes a
call to `tap_audit_exception` (cf. #11750), but this method isn't
visible in `FormulaInstaller`.
Instead of trying to replicate the logic of `tap_audit_exception` in
`FormulaAuditor` (or trying to initialise an instance of one to make the
call to `FormulaAuditor`'s implementation of it), let's just implement a
stub that assumes an exception always exists.
I'll need to think a bit about whether this is the right fix for this,
but currently the missing method error is blocking PRs in Homebrew/core,
so let's go with this for now. [1]
[1] e.g. Homebrew/homebrew-core#81388, Homebrew/homebrew-core#81582
The main class you should look at is the {Formula} class (and classes linked from there). That's the class that's used to create Homebrew formulae (i.e. package descriptions). Assume anything else you stumble upon is private.