fun _declaration() {
    val my_data = mapOf<String, Any?>(
        "date" to "2024-01-15",
        "datetime" to "2024-01-15T12:30:00+00:00",
    )
}
fun _assignment() {
    var my_data: Any? = null
    my_data = mapOf<String, Any?>(
        "date" to "2024-01-15",
        "datetime" to "2024-01-15T12:30:00+00:00",
    )
}
