src/language-handlebars/printer-glimmer.js/printElseIfBlock
function printElseIfBlock(path, print) {
  const parentNode = path.getParentNode(1);

  return [
    printInverseBlockOpeningMustache(parentNode),
    "else if ",
    printParams(path, print),
    printInverseBlockClosingMustache(parentNode),
  ];
}