     > = (<socket
       precedence="0"
       handwritten="false"
-      classes="Param forbid-all"
+      classes="forbid-all __function_param__"
     >y</socket
     >) -&gt; <socket
       precedence="0"

      precedence="0"
      color="purple"
      socketLevel="0"
      classes="Assign mostly-block"
    ><socket
      precedence="0"
      handwritten="false"
      classes="Value lvalue"

      precedence="-1"
      handwritten="false"
      classes="Value"
    >'ouch'</socket></block></indent></block></document>
  '''
  strictEqual(
      helper.xmlPrettyPrint(customSerialization),
      helper.xmlPrettyPrint(expectedSerialization),
