syntax_data: {"ast_node_type":"other","tokens":[{"end":69,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// late-bound regions and then normalize the result, yielding up
context_before:     /// If you have a `Binder<'tcx, T>`, you can do this to strip out the
context_after:     /// a `T` (with regions erased). This is appropriate when the