/**
 * Trigger a browser download for an already-generated blob.
 */
export function downloadBlob(blob: Blob, filename: string): void {
  const url = URL.createObjectURL(blob);
  const anchor = document.createElement("a");
  anchor.href = url;
  anchor.download = filename;
  document.body.appendChild(anchor);
  anchor.click();
  document.body.removeChild(anchor);
  URL.revokeObjectURL(url);
}