{
    let r := [1, 2, {'d': (1, 3, 42, 6)}]
    print(r.3.d.2)
}
{
    let r := [1, 2, {'d': (1, 3, 42, 6)}]
    print(r[3].d[3])
}
{
    let r := [1, 2, {'d': (1, 3, 42, 6)}]
    print(r.3['d'][4])
}
{
    let r := {'d': (1, 3, 42, 6)}
    print(r.d.2)
}
{
    let r := [1, 2, {'d': [1, 3, 42, 3]}]
    r.3.d.3 := 3
    print(r.3.d.3)
}
{
    let r := [1, 2, {'d': [1, 3, 42, 3]}]
    r[3].d[3] := 3
    print(r[3].d[3])
}
{
    let r := [1, 2, {'d': [1, 3, 42, 3]}]
    r[3].c := [666]
    print(r[3])
}
{
    let r := [1, 2, {'d': [1, 3, 42, 3]}]
    r[3].d[3] := 3
    print(r[3].d)
}
{
    let r := [1, 2, {'d': [1, 3, 42, 3]}]
    r.3['d'] := ['a', 'b', 'c', 'd']
    print(r[3].d[3])
}
{
    let r := [1, 2, {'d': [1, 3, 42, 3]}]
    let g := 'd'
    r.3[g] := ['a', 'b', 'c', 'd']
    print(r[3].d[3])
}
{
    let event := {
        'event': '$pageview',
        'properties': {
            '$browser': 'Chrome',
            '$os': 'Windows'
        }
    }
    event['properties']['$browser'] := 'Firefox'
    print(event)
}
{
    let event := {
        'event': '$pageview',
        'properties': {
            '$browser': 'Chrome',
            '$os': 'Windows'
        }
    }
    event.properties.$browser := 'Firefox'
    print(event)
}
{
    let event := {
        'event': '$pageview',
        'properties': {
            '$browser': 'Chrome',
            '$os': 'Windows'
        }
    }
    let config := {}
    print(event)
}