Tuples

1. ```
   fn main() {
   ```
2. ```
       let t: (i8, bool) = (7, true);
   ```
3. ```
       println!("t.0: {}", t.0);
   ```
4. ```
       println!("t.1: {}", t.1);
   ```
5. ```
   }
   ```

This slide should take about 5 minutes.

• Like arrays, tuples have a fixed length.
• Tuples group together values of different types into a compound type.
• Fields of a tuple can be accessed by the period and the index of the value, e.g. t.0, t.1.
• The empty tuple () is referred to as the “unit type” and signifies absence of a return value, akin to void in other languages.