basic-record({ required: 1 });
basic-record({ required: 1, optional: none });
basic-record({ required: 1, optional: none, });
basic-record({ optional: none, required: 1 });
basic-record({ required: 1, optional: some(2) });
basic-record({ optional: some(2), required: 1, });
optional-fields-record({:});
optional-fields-record({ : });
optional-fields-record({a:none,b:none});
optional-fields-record({b:none,});
optional-fields-record({a:some(1)});
optional-fields-record({b:some(2)});
optional-fields-record({b:some(2),a:some(1)});
keyword-fields-record({true: true, false: false, some: some(1), none: none, ok: ok, err: err, inf: inf, nan: nan});