{"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"[tt::TokenTree::Leaf(tt::Leaf::Ident(tt::Ident"}]}
            [tt::TokenTree::Leaf(tt::Leaf::Ident(tt::Ident { sym, .. })), ..]
        if matches!(tt.flat_tokens(),
            if *sym == sym::unsafe_