pm4py/tests/xes_importer_tests/classifierEmptyKeys.xes

<log xes.version="1849.2016" xes.features="">
	<extension name="Concept" prefix="concept" uri="http://www.xes-standard.org/concept.xesext" />
	<extension name="Organizational" prefix="org" uri="http://www.xes-standard.org/org.xesext" />
	<global scope="event">
		<string key="concept:name" value="name" />
		<string key="org:resource" value="name" />
	</global>
	<classifier name="name" keys=" " />
</log>