/** * Opens and returns the writer for the {@code agi_fan} property. The {@code agi_fan} property defines defines a fan, which starts at a point or apex and extends in a specified list of directions from the apex. Each pair of directions forms a face of the fan extending to the specified radius. The fan is positioned and oriented using the {@code position} and {@code orientation} properties. */ @Nonnull public final FanCesiumWriter openFanProperty() { return this.<FanCesiumWriter> openAndReturn(getFanWriter()); }