Optional featureType
featureType: undefined | "all" | "administrative" | "administrative.country" | "administrative.land_parcel" | "administrative.locality" | "administrative.neighborhood" | "administrative.province" | "landscape" | "landscape.man_made" | "landscape.natural" | "landscape.natural.landcover" | "landscape.natural.terrain" | "poi" | "poi.attraction" | "poi.business" | "poi.government" | "poi.medical" | "poi.park" | "poi.place_of_worship" | "poi.school" | "poi.sports_complex" | "road" | "road.arterial" | "road.highway" | "road.highway.controlled_access" | "road.local" | "transit" | "transit.line" | "transit.station" | "transit.station.airport" | "transit.station.bus" | "transit.station.rail" | "water"