syntax_data: {"ast_node_type":"other","tokens":[{"end":69,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: /// compiler's representation for things like `for<'a> Fn(&'a isize)`
context_before: /// Binder is a binder for higher-ranked lifetimes or types. It is part of the
context_after: /// (which would be represented by the type `PolyTraitRef ==