Py2neo and without RETURN clause in graph.run()

Is it mandatory to use a RETURN clause in a LOAD CSV Cypher query while executing with graph.run()
Is there any alternative function similar to graph.run() without using the RETURN clause and didn't find in py2neo tutorial?
Thanks!

You have to RETURN something, even if it is a hardcoded string :wink:, like RETURN "done" as x.