<?xml version="1.0" encoding="utf-8" ?>
<SMTK_AttributeSystem Version="2">
  <Definitions>
    <!-- +1+ -->
    <AttDef Type="counter" BaseType="operator">
      <ItemDefinitions>
        <ModelEntity Name="model" NumberOfRequiredValues="1"/>
        <Int Name="count groups" NumberOfRequiredValues="1">
          <DefaultValue>0</DefaultValue>
        </Int>
      </ItemDefinitions>
    </AttDef>
    <!-- -1- -->
    <!-- +2+ -->
    <!-- Result -->
    <AttDef Type="result(counter)" BaseType="result">
      <ItemDefinitions>
        <Int Name="count" NumberOfRequiredValues="1">
        </Int>
      </ItemDefinitions>
    </AttDef>
    <!-- -2- -->
  </Definitions>
</SMTK_AttributeSystem>
