1  struct User {
 2      active: bool,
 3      username: String,
 4      email: String,
 5      sign_in_count: u64,
 6  }
 7  
 8  fn build_user(email: String, username: String) -> User {
 9      User {
10          active: true,
11          username,
12          email,
13          sign_in_count: 1,
14      }
15  }
16  
17  fn main() {
18      let user1 = build_user(
19          String::from("someone@example.com"),
20          String::from("someusername123"),
21      );
22  }