require_gen.rb in killbill-8.0.0

- old
+ new

@@ -128,9 +128,10 @@
 require 'killbill/gen/api/tenant_user_api'
 require 'killbill/gen/api/rolled_up_unit'
 require 'killbill/gen/api/rolled_up_usage'
 require 'killbill/gen/api/subscription_usage_record'
 require 'killbill/gen/api/unit_usage_record'
+require 'killbill/gen/api/usage_api_exception'
 require 'killbill/gen/api/usage_record'
 require 'killbill/gen/api/usage_user_api'
 require 'killbill/gen/api/audit_user_api'
 require 'killbill/gen/api/column_info'
 require 'killbill/gen/api/custom_field_api_exception'