How to perform 'Async Get File Size' in C++.
// Task: Async Get File Size
// Language: C++
void asyncGetFileSize() {
// Implementation for Async Get File Size
auto result = ...; // Initialize variable
// TODO: Implement core logic here
// Step 1: Prepare data
// Step 2: Process Async Get File Size
std::cout << "Done" << std::endl;
}