rust-base64
``` Rust
extern crate wdg_base64;
use wdgbase64::B64;
use wdgbase64::B64Encode;
use wdg_base64::B64Decode;
fn main(){
println!("{}",B16::::encode(String::from("")));
println!("{}",B16::::encode(String::from("f")));
println!("{}",B16::::encode(String::from("fo")));
println!("{}",B16::::encode(String::from("foo")));
println!("{}",B16::::encode(String::from("foob")));
println!("{}",B16::::encode(String::from("fooba")));
println!("{}",B16::::encode(String::from("foobar")));
}
```