fn main() {
use hashvec::*;
let mut a: HashVec<&'static str, &'static str> = hashvec![
("Frank", "Dog"),
("Jimmy", "Pig")
];
let mut b: HashVec<&'static str, &'static str> = hashvec![
("Mack", "Cat")
];
a.append(&mut b);
println!("{:#?}", a);
println!("{:#?}", b);
}