1/// - content (content):
 2/// -> str
 3#let to-string(content) = {
 4  if (int, float, str, bytes, label, decimal, version, type).contains(
 5    type(content),
 6  ) {
 7    str(content)
 8  } else if content.has("text") and type(content.text) == str {
 9    content.text
10  } else if content.has("children") {
11    content.children.map(to-string).join("")
12  } else if content.has("body") {
13    to-string(content.body)
14  } else if content == [ ] {
15    " "
16  }
17}