How to Async Base64 Encode in D - Code Snippet

// Task: Async Base64 Encode
// Language: D

void async_base64_encode() {
    // Implementation for Async Base64 Encode
    auto result = ...; // Initialize variable
    // TODO: Implement core logic here
    // Step 1: Prepare data
    // Step 2: Process Async Base64 Encode
    writeln("Done");
}