warningAsError.lean:8:6-8:7: warning: `g` has been deprecated: Use `f` instead
1
warningAsError.lean:12:6-12:7: error: `g` has been deprecated: Use `f` instead
1
warningAsError.lean:15:7-15:13: error: Variable name `unused` is not explicitly referenced.

The binding can be removed (if unused) or named `_` (if used implicitly).

Note: This linter can be disabled with `set_option linter.unusedVariables false`