<Operation Class="NQualityOfLife.XML.StringConcat">
    <value>string</value>
    <value2>string</value2>
    <toVar>string</toVar>
</Operation>

<Operation Class="NQualityOfLife.XML.AddTextVariable">
    <toVar>{myXpath}</toVar>
    <value>
        Defs/ThingDef[not(defName[contains(text(), "Passive")])]
        [not(designatorDropdown) or defName[contains(text(), "_Over")]]
        [not(stuffCategories)]
        [label[contains(text(),"cooler")] or defName[contains(text(),"Cooler")]]
        [not(description[contains(text(),"water")])]
        [
            thingClass="Building_Cooler"
            or @ParentName[contains(string(), "Cooler")]
            or thingClass[contains(text(),"Cooler")]
            or
            (
                description[contains(text(),"cooling")]
                and
                (
                    description[contains(text(),"Cool")]
                    or description[contains(text(),"cool")]
                )
            )
        ]
    </value>
</Operation>

<Operation Class="NQualityOfLife.XML.StringConcat">
    <value>{myXpath}</value>
    <value2>[not(defName="Cooler")]</value2>
    <toVar>{probe}</toVar>
</Operation>

<Operation Class="NQualityOfLife.XML.PatchIfExists">
    <xpath>Defs/ThingDef[defName="Cooler"][not(designatorDropdown)][not(stuffCategories)]</xpath>
    <probe>{probe}</probe>
    <bothExist Class="NQualityOfLife.XML.AddOrReplace">
        <xpath>{myXpath}</xpath>
        <value>
            <designatorDropdown>PatchPack_Coolers</designatorDropdown>
        </value>
    </bothExist>
</Operation>

<Operation Class="NQualityOfLife.XML.ClearVariable">
    <name>{probe}</name>
</Operation>

<Operation Class="NQualityOfLife.XML.ClearVariable">
    <name>{myXpath}</name>
</Operation>