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: vstat.rs
    path of file: ./repos/terra-rust/examples
    
    the code of the file until where you have to start completion: use dotenv::dotenv;
use rust_decimal::prelude::Zero;
use rust_decimal::Decimal;
use std::collections::{HashMap, HashSet};
use std::fs::File;
use std::io::{BufReader, BufWriter, Write};
use std::ops::Div;

use terra_rust_api::staking_types::ValidatorDelegation;

use terra_rust_cli::cli_helpers;

/// VERSION number of package
pub const VERSION: Option<&'sta
    
async fn main() {
    dotenv().ok();
    env_logger::init();

    if let Err(ref err) = run().await {
        log::error!("{}", err);
        err.chain()
            .skip(1)
            .for_each(|cause| log::error!("because: {}", cause));

        // The backtrace is not always generated. Try to run this example
        // with `$env:RUST_BACKTRACE=1`.
        //    if let Some(backtrace) = e.backtrace() {
        //        log::debug!("backtrace: {:?}", backtrace);
        //    }

        ::std::process::exit(1);
    }
}