{"ast_node_type":"import","tokens":[{"end":71,"kind":"keyword","start":0,"text":"check_one(\"std::io\","}]}
    check_one("std::io", r"use {std::fmt};", r"use {std::{fmt, io}};");
    check_module("std::io", r"use std::fmt;", r"use std::{fmt, io};");
    check_one("std::io", r"use std::fmt;", r"use {std::{fmt, io}};");