{"ast_node_type":"function","tokens":[{"end":100,"kind":"keyword","start":0,"text":"pub"}]}
    pub fn struct_expect(self, msg: impl Into<DiagMessage>, id: LintExpectationId) -> Diag<'a, ()> {
    #[track_caller]
        Diag::new(self, Expect, msg).with_lint_id(id)