void (_Fields field, @org.apache.thrift.annotation.Nullable java.lang.Object value) { switch (field) { case SUCCESS: if (value == null) { unsetSuccess(); } else { setSuccess((java.util.List<CompletionOption>)value); } break; case UNHANDLED_EXCEPTION: if (value == null) { unsetUnhandledException(); } else { setUnhandledException((PythonUnhandledException)value); } break; } }