How to Async Replace Substring in Scala - Code Snippet

// Task: Async Replace Substring
// Language: Scala

def async_replace_substring() {
    // Implementation for Async Replace Substring
    val result = ...; // Initialize variable
    // TODO: Implement core logic here
    // Step 1: Prepare data
    // Step 2: Process Async Replace Substring
    println("Done");
}