+# os_object_t classes
+_OBJC_CLASS_$_OS_object
+_OBJC_CLASS_$_OS_voucher
+#_OBJC_CLASS_$_OS_voucher_recipe
+# non-os_object_t classes
+_OBJC_CLASS_$_OS_dispatch_data
+_OBJC_CLASS_$_OS_dispatch_data_empty
+# metaclasses
+_OBJC_METACLASS_$_OS_dispatch_object
+_OBJC_METACLASS_$_OS_dispatch_semaphore
+_OBJC_METACLASS_$_OS_dispatch_group
+_OBJC_METACLASS_$_OS_dispatch_queue
+_OBJC_METACLASS_$_OS_dispatch_queue_serial
+_OBJC_METACLASS_$_OS_dispatch_queue_concurrent
+_OBJC_METACLASS_$_OS_dispatch_queue_root
+_OBJC_METACLASS_$_OS_dispatch_queue_main
+_OBJC_METACLASS_$_OS_dispatch_queue_runloop
+_OBJC_METACLASS_$_OS_dispatch_queue_mgr
+_OBJC_METACLASS_$_OS_dispatch_queue_specific_queue
+_OBJC_METACLASS_$_OS_dispatch_queue_attr
+_OBJC_METACLASS_$_OS_dispatch_source
+_OBJC_METACLASS_$_OS_dispatch_mach
+_OBJC_METACLASS_$_OS_dispatch_mach_msg
+_OBJC_METACLASS_$_OS_dispatch_io
+_OBJC_METACLASS_$_OS_dispatch_operation