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/code/ch7/ch7-fview-str/src
    
    the code of the file until where you have to start completion: use std::io::prelude::*;                           <1>

const BYTES_PER_LINE: usize = 16;
const INPUT: &'static [u8] = br#"                  <2>
fn main() {
    println!("Hello, wor
    
fn main() -> std::io::Result<()> {
    let mut buffer: Vec<u8> = vec!();              <3>
    INPUT.read_to_end(&mut buffer)?;               <4>

    let mut position_in_input = 0;
    for line in buffer.chunks(BYTES_PER_LINE) {
        print!("[0x{:08x}] ", position_in_input);  <5>
        for byte in line {
            print!("{:02x} ", byte);
        }
        println!();                                <6>
        position_in_input += BYTES_PER_LINE;
    }

    Ok(())
}