export const downloadBlob = (blob: Blob, filename?: string) => {
  const url = window.URL.createObjectURL(blob);
  const link = document.createElement('a');
  link.href = url;
  if (filename) {
    link.download = filename;
  }
  document.body.appendChild(link);
  link.click();
  document.body.removeChild(link);
  window.URL.revokeObjectURL(url);
};