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: exists.rs
    path of file: ./repos/nushell/crates/nu-command/src/path
    
    the code of the file until where you have to start completion: use std::path::{Path, PathBuf};

use nu_engine::{current_dir, current_dir_const, CallExt};
use nu_path::expand_path_with;
use nu_pro
    
    fn examples(&self) -> Vec<Example> {
        vec![
            Example {
                description: "Check if a file exists",
                example: "'/home/joe/todo.txt' | path exists",
                result: Some(Value::test_bool(false)),
            },
            Example {
                description: "Check if files in list exist",
                example: "[ /home/joe/todo.txt, /home/doe/todo.txt ] | path exists",
                result: Some(Value::test_list(vec![
                    Value::test_bool(false),
                    Value::test_bool(false),
                ])),
            },
        ]
    }