syntax_data: {"ast_node_type":"other","tokens":[{"end":60,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// (intra-binder disambiguation) with a `DebruijnIndex`
context_before:     /// This is used to flatten rustc's pairing of `BrAnon`
context_after:     /// (binder addressing), to "true" de Bruijn indices,