Chapter 4 Hints

Stubs

#![allow(unused_variables)]
fn main() {
use std::path::PathBuf;

pub enum PngMeArgs {
    Encode(EncodeArgs),
    Decode(DecodeArgs),
    Remove(RemoveArgs),
    Print(PrintArgs),
}

pub struct EncodeArgs {
    // Write me!
}

pub struct DecodeArgs {
    // Write me!
}

pub struct RemoveArgs {
    // Write me!
}

pub struct PrintArgs {
    // Write me!
}
}