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/wmi/src
    
    the code of the file until where you have to start completion: use windows::{core::*, Win32::System::Com::*, Win32::System::Wmi::*};

fn main() -> Result<()> {
    unsafe {
        CoInitializeEx(None, COINIT_MULTITHREADED).ok()?;

        CoInitializeSecurity(
            None,
            -1,
            None,
            None,
            RPC_C_AUTHN_LEVEL_DEFAULT,
            RPC_C_IMP_LEVEL_IMPERSONATE,
            None,
            EOAC_NONE,
            None,
        )?;

        let locator: IWbemLocator = CoCreateInstance(&WbemLocator, None, CLSCTX_INPROC_SERVER)?;

        let server =
            locator.ConnectServer(&BSTR::from("root\\cimv2"), None, None, None, 0, None, None)?;

        //
        // ExecQuery example
        //

        let query = server.ExecQuery(
            &BSTR::from("WQL"),
            &BSTR::from("select Caption from Win32_LogicalDisk"),
            WB
    
fn main() -> Result<()> {
    unsafe {
        CoInitializeEx(None, COINIT_MULTITHREADED).ok()?;

        CoInitializeSecurity(
            None,
            -1,
            None,
            None,
            RPC_C_AUTHN_LEVEL_DEFAULT,
            RPC_C_IMP_LEVEL_IMPERSONATE,
            None,
            EOAC_NONE,
            None,
        )?;

        let locator: IWbemLocator = CoCreateInstance(&WbemLocator, None, CLSCTX_INPROC_SERVER)?;

        let server =
            locator.ConnectServer(&BSTR::from("root\\cimv2"), None, None, None, 0, None, None)?;

        //
        // ExecQuery example
        //

        let query = server.ExecQuery(
            &BSTR::from("WQL"),
            &BSTR::from("select Caption from Win32_LogicalDisk"),
            WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY,
            None,
        )?;

        loop {
            let mut row = [None; 1];
            let mut returned = 0;
            query.Next(WBEM_INFINITE, &mut row, &mut returned).ok()?;

            if let Some(row) = &row[0] {
                let mut value = VARIANT::default();
                row.Get(w!("Caption"), 0, &mut value, None, None)?;
                println!("{value}",);
            } else {
                break;
            }
        }

        //
        // ExecMethod example
        //

        let class_name = BSTR::from("Win32_Process");
        let method_name = BSTR::from("Create");

        let mut class = None;
        server.GetObject(
            &class_name,
            Default::default(),
            None,
            Some(&mut class),
            None,
        )?;
        let class = class.unwrap();

        let mut input = None;
        class.GetMethod(&method_name, 0, &mut input, std::ptr::null_mut())?;
        let input = input.unwrap();

        let object = input.SpawnInstance(0)?;
        object.Put(w!("CommandLine"), 0, &VARIANT::from("notepad.exe"), 0)?;

        let mut output = None;
        server.ExecMethod(
            &class_name,
            &method_name,
            Default::default(),
            None,
            &object,
            Some(&mut output),
            None,
        )?;
        let output = output.unwrap();

        let mut value = VARIANT::default();
        output.Get(w!("ReturnValue"), 0, &mut value, None, None)?;
        println!("`Create` method return value: {value}");

        Ok(())
    }
}