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: starship.rs
    path of file: ./repos/vector/vdev/src/commands/meta
    
    the code of the file until where you have to start completion: use anyhow::Result;
use clap::Args;

use crate::util::CargoToml;

/// Custom Starship prompt plugin
#[derive(Args, Debug)]
#[command(hide = true)]
pub struct Cli {}

impl Cli {
    pub fn exec(self) -> Res
    
    pub fn exec(self) -> Result<()> {
        let mut contexts = vec![];

        if let Ok(cargo_toml) = CargoToml::load() {
            contexts.push(format!("version: {}", cargo_toml.package.version));
        }

        println!("vector{{ {} }}", contexts.join(", "));

        Ok(())
    }