Update index.js

src/modules/third-part/index.js

@@ -22,7 +22,7 @@ export const CallbackProperty = Cesium.CallbackProperty
 export const ClassificationType = Cesium.ClassificationType
 export const TilesetStyle = Cesium.Cesium3DTileStyle
 export const GeographicTilingScheme = Cesium.GeographicTilingScheme
-export const ebMercatorTilingScheme = Cesium.WebMercatorTilingScheme
+export const WebMercatorTilingScheme = Cesium.WebMercatorTilingScheme
 export const ColorMaterialProperty = Cesium.ColorMaterialProperty
 export const ImageMaterialProperty = Cesium.ImageMaterialProperty
 export const PolylineDashMaterialProperty = Cesium.PolylineDashMaterialProperty