export function getByteLength(str) {
  return new TextEncoder().encode(str).length
}

export function truncateToMaxBytes(str, maxBytes) {
  if (getByteLength(str) <= maxBytes) return str
  let end = str.length
  while (end > 0 && getByteLength(str.slice(0, end)) > maxBytes) end--
  return str.slice(0, end)
}