Function primitives 

pub(crate) fn primitives(
    _a: i64,
    _b: u64,
    _c: f64,
    _d: bool,
    _e: Arc<String>,
    _f: Arc<Vec<u8>>,
    _g: Duration,
    _h: DateTime<FixedOffset>,
    _i: Arc<Vec<Value>>,
) -> Duration

A function that illustrates all the different types of values that are supported as arguments to a function, as well as the fact that any of these types can also be returned from a function.