syntax_data: {"ast_node_type":"other","tokens":[{"end":41,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// instead of the ordinary behavior.
context_before:     /// If enabled, when we see the selected region, use "`'N`"
context_after:     highlight_regions: [Option<(ty::Region<'tcx>, usize)>; 3],