You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: main.rs
    path of file: ./repos/windows-rs/crates/samples/windows/uiautomation/src
    
    the code of the file until where you have to start completion: use windows::{
    core::*, Win32::System::Com::*, Win32::UI::Accessibility::*, Win32::UI::WindowsAndMessaging::*,
    UI::UIAutomation::*,
};

fn main() -> Result<()> {
    unsafe {
        CoInitializeEx(None, COINIT_MULTITHREADED).ok()?;
        let window = FindWindowA(None, s!("Calculator"));

        // Start with COM API
        let automation: IUIAutomation = CoCreateInstance(&CUIAutomation, None, CLSCTX_ALL)?;
        let element: IUIAutomationElement = automation.ElementFromHandle(window)?;

        // Use COM API
        let name = element.CurrentName()?;
        println!("window name: {name}");

        // Query for WinRT API (wil
    
fn main() -> Result<()> {
    unsafe {
        CoInitializeEx(None, COINIT_MULTITHREADED).ok()?;
        let window = FindWindowA(None, s!("Calculator"));

        // Start with COM API
        let automation: IUIAutomation = CoCreateInstance(&CUIAutomation, None, CLSCTX_ALL)?;
        let element: IUIAutomationElement = automation.ElementFromHandle(window)?;

        // Use COM API
        let name = element.CurrentName()?;
        println!("window name: {name}");

        // Query for WinRT API (will fail on earlier versions of Windows)
        let element: Result<AutomationElement> = element.cast();

        if let Ok(element) = element {
            // Use WinRT API
            println!("file name: {}", element.ExecutableFileName()?);
        }
    }

    Ok(())
}