fn foo(mut m map[string][1][2]map[string]int) {
    m['foo'] = [[{
        'bar': 1
    }, {
        'baz': 3
    }]!]!
}

fn test_complex_map_fixed_array() {
    mut m := map[string][1][2]map[string]int{}
    foo(mut m)
    println(m)
    assert '${m}' == "{'foo': [[{'bar': 1}, {'baz': 3}]]}"
}

fn test_innermost_value_of_map_fixed_array() {
    mut m := map[string][1][2]map[string]int{}
    m['foo'] = [[{
        'bar': 1
    }, {
        'baz': 3
    }]!]!
    println(m['foo'][0][0]['bar'])
    println(m['foo'][0][0]['bar'] == 1)
    assert m['foo'][0][0]['bar'] == 1
    assert '${m['foo'][0][0]['bar']}' == '1'
}

fn test_complex_map_high_order_fixed_array() {
    mut m := {
        'foo': [[{
            'a': 1
        }]!]!
        'bar': [[{
            'b': 2
        }]!]!
    }
    for _, mut j in m {
        j = [[{
            'c': 3
        }]!]!
    }
    println(m)
    assert '${m}' == "{'foo': [[{'c': 3}]], 'bar': [[{'c': 3}]]}"
}