How to perform 'Async Get File Size' in PowerShell.
# Task: Async Get File Size
# Language: PowerShell
function async_get_file_size() {
# Implementation for Async Get File Size
$ result = ...; # Initialize variable
# TODO: Implement core logic here
# Step 1: Prepare data
# Step 2: Process Async Get File Size
Write-Host("Done");
}