{"ast_node_type":"function","tokens":[{"end":84,"kind":"keyword","start":0,"text":"fn"}]}
    fn unquote(text: &str, prefix_len: usize, end_delimiter: char) -> Option<&str> {
    // FIXME: move this function to outer scope (https://github.com/rust-lang/rust-analyzer/pull/2834#discussion_r366196658)
        text.rfind(end_delimiter).and_then(|end| text.get(prefix_len..end))