How to Async Verify Signature in D - Code Snippet

// Task: Async Verify Signature
// Language: D

void async_verify_signature() {
    // Implementation for Async Verify Signature
    auto result = ...; // Initialize variable
    // TODO: Implement core logic here
    // Step 1: Prepare data
    // Step 2: Process Async Verify Signature
    writeln("Done");
}