Gets the access control policy for a billing account. The caller must have the
billing.accounts.getIamPolicy permission on the account, which is often given to billing account viewers.
The URL uses Google API HTTP annotation syntax.
REQUIRED: The resource for which the policy is being requested. See the operation documentation for the appropriate value for this field.
The request body must be empty.
If successful, the response body contains an instance of
Requires one of the following OAuth scopes:
For more information, see the Auth Guide.