{"ast_node_type":"other","tokens":[{"end":45,"kind":"keyword","start":0,"text":"ast::Item(__)"}]}
                ast::Item(__) => return None,
                ast::Fn(fn_) => sema.to_def(&fn_)?.ret_type(sema.db),
                ast::ClosureExpr(closure) => sema.type_of_expr(&closure.body()?)?.original,