How to Parallel Get File Extension in Groovy - Code Snippet

// Task: Parallel Get File Extension
// Language: Groovy

def parallel_get_file_extension() {
    // Implementation for Parallel Get File Extension
    def result = ...; // Initialize variable
    // TODO: Implement core logic here
    // Step 1: Prepare data
    // Step 2: Process Parallel Get File Extension
    println("Done");
}