it's a proto struct.
```
fn construct_telem() -> Accel {
    Accel {
            time: Timestamp {
            seconds: 1777674,
            nanos: 2000,
        },
            x_accel: 1.0,
            y_accel: -1.2,
            z_accel: 1.14,
            _has: Accel_::_Hazzer::default()
        }]
}

```
just some random values, but I might be doing this wrong.  looking now.