SKU attributes and granular usage units in pricing data export (Preview)

## Feature Feature **SKU attributes and granular usage units in pricing data export (Preview)** SKU attributes and granular usage units are now available in[Preview](https://cloud.google.com/products#product-launch-stages)in the Cloud Billing[pricing data export to BigQuery](https://cloud.google.com/billing/docs/how-to/export-data-bigquery-tables/pricing-data). * **SKU attributes**: SKU attributes are key-value pairs that describe the SKU. For example, _Key_: `model_name`, _Value_: `gemini_2_5_flash`. * **Granular usage units**: Granular usage units are the usage unit of the SKU, such as `tokens`. For more information about these dimensions, see the following: * [SKU attributes](https://cloud.google.com/billing/docs/how-to/export-data-bigquery-tables/pricing-data#sku%5Fattributes) * [Granular usage units](https://cloud.google.com/billing/docs/how-to/export-data-bigquery-tables/pricing-data#sku%5Fgranular%5Fusage%5Funits)