1
#set heading(numbering: (..numbers) => {
2
  let level = numbers.pos().len()
3
  if (level == 1) {
4
    return numbering("I", numbers.pos().at(level - 1))
5
  } else if (level == 2) {
6
    return numbering("A", numbers.pos().at(level - 1))
7
  } else {
8
    return numbering("1", numbers.pos().at(level - 1))
9
  }
10
})