{"ast_node_type":"variable","tokens":[{"end":85,"kind":"keyword","start":0,"text":"let"}]}
            let usage_parent_option = usage_node.as_ref().and_then(|it| it.parent());
                name_ref.syntax().ancestors().find(|it| ast::PathExpr::can_cast(it.kind()));
            let usage_parent = match usage_parent_option {