download.ts

 async download(image: string) {
    const result = await fetch(`data:image/png;base64,${image}`);
    const blob = await result.blob();
    const a = document.createElement('a');
    a.href = URL.createObjectURL(blob);
    a.download = name;
    document.body.appendChild(a);
    a.click();
    document.body.removeChild(a);
  }