Description:
Use custom pricing in the estimate, using a `CostScenario` with a defined `billingAccount`.
Parameter Order:
billingAccount
Parameters:
billingAccount
Pattern:
^billingAccounts/[^/]+$
Description:
Resource name of the billing account for the cost estimate. The resource name has the form `billingAccounts/{billing_acount_id}`. For example, `billingAccounts/012345-567890-ABCDEF` is the resource name for billing account `012345-567890-ABCDEF`. Must be specified.