CallBimlScript with parameters give error "Template host did not supply the required property"

When trying to use parameterized biml file using CallBimlScript like this

<#=CallBimlScript("VariableTest.biml", "variableValue") #>

And VariableTest.Biml looks like this

<#@ property name="variableValue" type="String" required="true" #>
<#= variableValue #>

Biml generation will fail with the following error

Expanding BIML
Error 0 Template host did not supply the required property: variableValue. C:\path\VariableTest.biml 0 0
Parse. There were errors during compilation. See compiler output for more information.

The error is because of bugs inside biml engine.
To work around this problem, Set required="false" like so

<#@ property name="variableValue" type="String" required="false" #>
<#= variableValue #>

The parameter passing will now work. If you need parameter validation, you have to implement it yourself.

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