library test;

var a = <int, String>{0: 'aaa', 1: 'bbb'};
var b = <double, int>{1.1: 1, 2.2: 2};
var c = <List<int>, Map<String, double>>{};
var d = <int, dynamic>{};
var e = <dynamic, int>{};
var f = <dynamic, dynamic>{};
main() {}