{"ast_node_type":"other","tokens":[{"end":69,"kind":"keyword","start":0,"text":"///"}]}
    /// `qself_ty` / `qself` is `A::B::C` and `assoc_segment` is `D`.
    /// A path like `A::B::C::D` is understood as `<A::B::C>::D`. I.e.,
    /// We return the lowered type and the `DefId` for the whole path.