try a python script in runner

extensions/botbox3000/deps/inkex/tester/inkscape.extension.schema

@@ -1,10 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<schema xmlns="http://purl.oclc.org/dsdl/schematron">
-<ns uri="http://www.inkscape.org/namespace/inkscape/extension" prefix="inx"/>
-  <pattern>
-    <title>duplicateOptionValues</title>
-    <rule context="//inx:param/inx:option">
-      <report test="preceding-sibling::inx:option/@value = @value">Warning: @value values should be unique for a given option.</report>
-    </rule>
-  </pattern>
-</schema>