{"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":"BorrowedContentSource::DerefMutableRef"}]}
            BorrowedContentSource::DerefMutableRef => Some("mutable reference"),
            BorrowedContentSource::DerefSharedRef => Some("shared reference"),
            // Overloaded deref and index operators should be evaluated into a