How to Async Get File Extension in Lua - Code Snippet

-- Task: Async Get File Extension
-- Language: Lua

function async_get_file_extension() 
    -- Implementation for Async Get File Extension
    local result = ...; -- Initialize variable
    -- TODO: Implement core logic here
    -- Step 1: Prepare data
    -- Step 2: Process Async Get File Extension
    print("Done");
end