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: option_builder.rs
    path of file: ./repos/skim/examples
    
    the code of the file until where you have to start completion: extern crate skim;
use skim::prelude::*;
use std::io::Cursor;

pub fn main() {
    let options = SkimOptionsBuilder::default()
        .height(Some("50%"))
        .multi(true)
        .build()
      
    
pub fn main() {
    let options = SkimOptionsBuilder::default()
        .height(Some("50%"))
        .multi(true)
        .build()
        .unwrap();
    let item_reader = SkimItemReader::default();

    //==================================================
    // first run
    let input = "aaaaa\nbbbb\nccc";
    let items = item_reader.of_bufread(Cursor::new(input));
    let selected_items = Skim::run_with(&options, Some(items))
        .map(|out| out.selected_items)
        .unwrap_or_else(Vec::new);

    for item in selected_items.iter() {
        println!("{}", item.output());
    }

    //==================================================
    // second run
    let input = "11111\n22222\n333333333";
    let items = item_reader.of_bufread(Cursor::new(input));
    let selected_items = Skim::run_with(&options, Some(items))
        .map(|out| out.selected_items)
        .unwrap_or_else(Vec::new);

    for item in selected_items.iter() {
        println!("{}", item.output());
    }
}