viewSignature method
Fetches the user's official signature rendered as a Base64 encoded string format.
This is optimized for inline document embedding and programmatic PDF signing processes.
Implementation
$grpc.ResponseFuture<$1.Base64String> viewSignature(
$1.IdentifierUUID request, {
$grpc.CallOptions? options,
}) {
return $createUnaryCall(_$viewSignature, request, options: options);
}