Add missing example rntuple producer

test/k4FWCoreTest/options/ExampleFunctionalProducerRNTuple.py

@@ -0,0 +1,43 @@
+#
+# Copyright (c) 2014-2024 Key4hep-Project.
+#
+# This file is part of Key4hep.
+# See https://key4hep.github.io/key4hep-doc/ for further info.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# This is an example using a producer with a single output and saving that to an RNTuple file
+
+from Gaudi.Configuration import INFO
+from Configurables import ExampleFunctionalProducer
+from Configurables import EventDataSvc
+from k4FWCore import ApplicationMgr, IOSvc
+
+iosvc = IOSvc("IOSvc")
+name = "functional_producer_rntuple.root"
+iosvc.Output = name
+iosvc.IOType = "RNTuple"
+# Collections can be dropped
+# out.outputCommands = ["drop *"]
+
+
+producer = ExampleFunctionalProducer("ExampleFunctionalProducer")
+
+ApplicationMgr(
+    TopAlg=[producer],
+    EvtSel="NONE",
+    EvtMax=10,
+    ExtSvc=[EventDataSvc("EventDataSvc")],
+    OutputLevel=INFO,
+)