{"ast_node_type":"other","tokens":[{"end":23,"kind":"keyword","start":0,"text":"MatchedHirTy(Span),"}]}
    MatchedHirTy(Span),
    /// The anonymous region corresponds to a reference that was found by traversing the type in the HIR.
    /// The anonymous region corresponds to a `'_` in the generics list of a struct/enum/union.