Leaflet Try It Now Routing Advanced Location

var map,
                    dir;

map = L.map('map', {
                    layers: MQ.mapLayer(),
                    center: [ 38.895345, -77.030101 ],
                    zoom: 15
                });

dir = MQ.routing.directions();

dir.route({
                    locations: [
                        { latLng: { lat: 38.895211, lng: -77.036495 } },
                        { street: '935 pennsylvania ave', city: 'washington', state: 'dc' }
                    ]
                });

map.addLayer(MQ.routing.routeLayer({
                    directions: dir,
                    fitBounds: true
                }));
            }
        </script>
    </head>

Routing with an Advanced Location Object