---
title: "init(inputs:outputs:evaluationFunction:)"
framework: modelio
role: symbol
role_heading: Initializer
path: "modelio/mdlmaterialpropertynode/init(inputs:outputs:evaluationfunction:)"
---

# init(inputs:outputs:evaluationFunction:)

## Declaration

```swift
init(inputs: [MDLMaterialProperty], outputs: [MDLMaterialProperty], evaluationFunction function: @escaping (MDLMaterialPropertyNode) -> Void)
```