A world-authored custom helper, defined as a compiled function body plus its parameter names. Loaded from the world's expression-helper JSON and compiled into an ExpressionHelper via textToFunction.
Optional
Parameter names for the compiled function. Defaults to none.
The function body (or a bare expression, which is implicitly returned).
A world-authored custom helper, defined as a compiled function body plus its parameter names. Loaded from the world's expression-helper JSON and compiled into an ExpressionHelper via textToFunction.