let location = Location::new();
location.set_api_key("<API_KEY>");
// Use your `geocode_location` queries below
if let Ok((lat, lon)) = geocode_location("Paris").await{
  // You have a `lat` and `lon` of Paris here.
}

fn main(){
  set_ident_header(String::from("<YOUR_HEADER>")).unwrap();
  // Now you can use `get_weather_at_location()`.
  let weather_in_paris = get_weather_at_location(48.8566, 2.3522).await;

  // If we try `set_ident_header` again, we'll get an error.
  set_ident_header(String::from("<YOUR_HEADER_2>")).unwrap_err();
}