How to use the @igo2/geo.FeatureType.Feature function in @igo2/geo

id: '2',
      source: 'testSource',
      title: 'testTitle2',
      type: FeatureType.Feature,
      projection: 'EPSG:4326',
      geometry: {
        type: 'LineString',
        coordinates: [[-72, 47.8], [-73.5, 47.4], [-72.4, 48.6]]
      }
    };

    const feature3: Feature = {
      id: '3',
      source: 'testSource',
      title: 'testTitle3',
      type: FeatureType.Feature,
      projection: 'EPSG:4326',
      geometry: {
        type: 'Polygon',
        coordinates: [[[-71, 46.8], [-73, 47], [-71.2, 46.6]]]
      }
    };

    this.overlayService.setFeatures([feature1, feature2, feature3]);
  }
}

type: 'osm'
      })
      .subscribe(dataSource => {
        this.map.addLayer(
          this.layerService.createLayer({
            title: 'OSM',
            source: dataSource
          })
        );
      });

    const feature1: Feature = {
      id: '1',
      source: 'testSource',
      title: 'testTitle',
      type: FeatureType.Feature,
      projection: 'EPSG:4326',
      geometry: {
        type: 'Point',
        coordinates: [-73, 46.6]
      }
    };

    const feature2: Feature = {
      id: '2',
      source: 'testSource',
      title: 'testTitle2',
      type: FeatureType.Feature,
      projection: 'EPSG:4326',
      geometry: {
        type: 'LineString',
        coordinates: [[-72, 47.8], [-73.5, 47.4], [-72.4, 48.6]]

handleFeatureFocus(feature: Feature) {
    if (feature.type === FeatureType.Feature) {
      this.overlayService.setFeatures([feature], OverlayAction.ZoomIfOutMapExtent);
    }
  }

type: FeatureType.Feature,
      projection: 'EPSG:4326',
      geometry: {
        type: 'Point',
        coordinates: [-73, 46.6]
      },
      properties: {
        attribute1: 'value1'
      }
    };

    const feature2: Feature = {
      id: '2',
      source: 'Source1',
      title: 'Title2',
      type: FeatureType.Feature,
      projection: 'EPSG:4326',
      geometry: {
        type: 'LineString',
        coordinates: [[-72, 47.8], [-73.5, 47.4], [-72.4, 48.6]]
      },
      properties: {
        attribute1: 'value2'
      }
    };

    const feature3: Feature = {
      id: '3',
      source: 'Source2',
      title: 'Title3',
      type: FeatureType.Feature,
      projection: 'EPSG:4326',

type: 'osm'
      })
      .subscribe(dataSource => {
        this.map.addLayer(
          this.layerService.createLayer({
            title: 'OSM',
            source: dataSource
          })
        );
      });

    const feature1: Feature = {
      id: '1',
      source: 'Source1',
      title: 'Title1',
      type: FeatureType.Feature,
      projection: 'EPSG:4326',
      geometry: {
        type: 'Point',
        coordinates: [-73, 46.6]
      },
      properties: {
        attribute1: 'value1'
      }
    };

    const feature2: Feature = {
      id: '2',
      source: 'Source1',
      title: 'Title2',
      type: FeatureType.Feature,
      projection: 'EPSG:4326',