PreviewSignatureOptions class Leave feedback

import io
from groupdocs.signature import Signature
from groupdocs.signature.domain import QrCodeTypes
from groupdocs.signature.options import PreviewSignatureOptions, QrCodeSignOptions

def generate_signature_preview_to_memory():
    image = io.BytesIO()

    def create_signature_stream(preview_options):
        # Write the image into the buffer instead of a file
        return image

    sign_options = QrCodeSignOptions("https://www.groupdocs.com/", QrCodeTypes.QR)
    sign_options.width = 120
    sign_options.height = 120

    preview_options = PreviewSignatureOptions(sign_options, create_signature_stream)
    Signature.generate_signature_preview(preview_options)

    data = image.getvalue()
    print(f"QR code preview: {len(data)} bytes, PNG image: {data.startswith(b'\\x89PNG')}")