How to BIML expression with string literal?

I am trying to put an expression on my PrecedenceConstraint which is just @[$Package::Variable] == "Y". If it was a number, no issues, but the double quotes is a real spanner in the works. I tried using a variable:

 <PrecedenceConstraints >
<#var Test = "@[Package::variable] == \"N\""; #>
<Inputs>
<Input OutputPathName="Get Frozen Val Count.Output" EvaluationOperation="Expression" Expression="<#=Test#>"/>
</Inputs>
</PrecedenceConstraints> 

The compiler says N is an unexpected token. What am I supposed to do here?

Can you try and encode the quotation marks?

& quot ;

is the XML parsable encoding for a quotation mark. so your code would look something like:

<Inputs>
    <Input OutputPathName="Get Frozen Val Count.Output" EvaluationOperation="Expression" Expression="@[Package::variable] == &quot;N&quot;" />
</Inputs>