{"ast_node_type":"variable","tokens":[{"end":92,"kind":"keyword","start":0,"text":"let"}]}
                let region = self.next_region_var(RegionVariableOrigin::Autoref(self.span));
            Some(probe::AutorefOrPtrAdjustment::Autoref { mutbl, unsize }) => {
                // Type we're wrapping in a reference, used later for unsizing