{"ast_node_type":"function","tokens":[{"end":76,"kind":"keyword","start":0,"text":"pub"}]}
    pub fn try_to_raw_bytes(self, tcx: TyCtxt<'tcx>) -> Option<&'tcx [u8]> {
    /// constants with types &str, &[u8], or [u8; _].
        match self.ty.kind() {