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val functionClass = functionClassObject.getClass

// infer argument types; this methodimplementation supports overloading evaluate function
val pTypes = argumentsFromDpath.map { o => o.getClass() }
val fEvaluate = functionClass.getMethods.find { p =>
	p.getName == "evaluate" && p.getParameterTypes.sameElements(pTypes)
}

val dResultType = NodeInfo.fromObject(fEvaluate.getReturnType)
val dArgTypes = fEvaluate.getParameterType.map { NodeInfo.fromObject }