to_null_if

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   Usages of this macro
... in utilities.naml
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<macro name="to_null_if" dot_parameter="value" parameters="equals">
    <n.if
Binary
Namespace: BasicNamespace
Parameters: condition, else, then
.equal
Binary
Namespace: BasicNamespace
Parameters: value2, value1
 value1="[n.value/]" value2="[n.equals/]">
        <then><n.null
Binary
Namespace: BasicNamespace
/></then>
        <else><n.value/></else>
    </n.if.equal>
</macro>