{"ast_node_type":"other","tokens":[{"end":60,"kind":"keyword","start":0,"text":"//"}]}
        // as a subtype of `Z`: `&'x i32 <: Z`. And hence we
        // Then we will assign the type of the initializer (`&'x i32`)
        // will instantiate `Z` as a type `&'0 i32` where `'0` is