dataTypeName property

The data type to aggregate.

All data sources providing this data type will contribute data to the aggregation. The response will contain a single dataset for this data type name. The dataset will have a data source ID of derived::com.google.android.gms:aggregated. If the user has no data for this data type, an empty data set will be returned. Note: Data can be aggregated by either the dataTypeName or the dataSourceId, not both.