{"ast_node_type":"function","tokens":[{"end":63,"kind":"keyword","start":0,"text":"fn"}]}
    fn range_bytes_is_empty(&self, range: AllocRange) -> bool {
    /// Same as `range_bytes_get(range).is_empty()`, but faster.
        self.bytes.as_ref().is_none_or(|bytes| bytes.range_is_empty(range.start..range.end()))