Unable to use account.updateSession() method for refreshing access token.

I am using Flutter appwrite SDK for Google oauth signin.
Code:
// For signin with google
await _account.createOAuth2Session(provider: 'google');
// For getting current session
final session = await _account.getSession(sessionId: 'current');
print('Refresh token: ' + session.providerRefreshToken);
// Here Refresh token is empty

// For refreshing accesstokens
await _account.updateSession(sessionId: 'current');
// This throws error: invalid_request: Missing required parameter: refresh_token

Output:
I/flutter (23510): Refresh token:
I/flutter (23510): invalid_request: Missing required parameter: refresh_token

FYI, it's best to wrap code in backticks to format a bit nicer. You can use 1 backtick for inline code (https://www.markdownguide.org/basic-syntax/#code) and 3 backticks for multiline code (https://www.markdownguide.org/extended-syntax/#syntax-highlighting.

ya i don't think you can refresh a google session at the moment. See related issue: https://github.com/appwrite/appwrite/issues/5987

Ok Thank you sir