{"ast_node_type":"impl","tokens":[{"end":82,"kind":"keyword","start":0,"text":"read_and_intern_str_or_byte_str_opaque:"}]}
        read_and_intern_str_or_byte_str_opaque: impl Fn(&mut MemDecoder<'a>) -> S,
        read_and_intern_str_or_byte_str_this: impl Fn(&mut Self) -> S,
    ) -> S {