src/language-handlebars/printer-glimmer.js/printParams
function printParams(path, print) {
  const node = path.getValue();
  const parts = [];

  if (node.params.length > 0) {
    const params = path.map(print, "params");
    parts.push(...params);
  }

  if (node.hash && node.hash.pairs.length > 0) {
    const hash = print("hash");
    parts.push(hash);
  }

  if (parts.length === 0) {
    return "";
  }

  return join(line, parts);
}