Cesium Exports API
Allows you to export the files for a particular asset to an Amazon S3 bucket of your choice. These files can then be hosted through a custom server or downloaded for local/offline use. The number of bytes exported counts against your monthly streaming quota. If your account goes over streaming quota, additional exports will not be possible until the next billing cycle. Exports are not supported for certain assets, such as from the Asset Depot or terrain assets which use a base terrain. Check the [exportable](#operation/getAsset) property of the asset to detect availability.