{"ast_node_type":"other","tokens":[{"end":61,"kind":"keyword","start":0,"text":"&self.src[self.src_index(start)..self.src_index(end)]"}]}
        &self.src[self.src_index(start)..self.src_index(end)]
    fn str_from_to(&self, start: BytePos, end: BytePos) -> &'src str {
    }