{"ast_node_type":"other","tokens":[{"end":123,"kind":"keyword","start":0,"text":"//"}]}
            // This closure is invoked if we haven't already decoded the data for the `SyntaxContext` we are deserializing.
        rustc_span::hygiene::decode_syntax_context(self, self.hygiene_context, |this, id| {
            // We look up the position of the associated `SyntaxData` and decode it.