#[derive(Default, bbgun::Builder, Debug)]
struct User {
username: String,
email: String,
sign_in_count: u64,
active: bool,
}
fn main() {
dbg!(User::builder()
.username("Foo".to_string())
.email("Bar@biz.baz".to_string())
.sign_in_count(25043)
.active(true));
}