How to Base64 Decode in Groovy - Code Snippet

// Task: Base64 Decode
// Language: Groovy

def base64_decode() {
    // Implementation for Base64 Decode
    def result = ...; // Initialize variable
    // TODO: Implement core logic here
    // Step 1: Prepare data
    // Step 2: Process Base64 Decode
    println("Done");
}