How do I use this for a material?

I wasn’t able to paste those above nodes myself. Strange. Trying this again:

Begin Object Class=MaterialGraphNode Name=“MaterialGraphNode_4”
Begin Object Class=EdGraphPin Name=“EdGraphPin_208755”
End Object
Begin Object Class=MaterialExpressionConstant Name=“MaterialExpressionConstant_8”
End Object
Begin Object Name=“EdGraphPin_208755”
PinName=“Output”
PinFriendlyName=" "
Direction=EGPD_Output
End Object
Begin Object Name=“MaterialExpressionConstant_8”
MaterialExpressionEditorX=64
MaterialExpressionEditorY=720
MaterialExpressionGuid=A9C6862B46C4F8AC3334DAB904495948
Material=PreviewMaterial’/Engine/Transient.M_AssetPlatform’
End Object
MaterialExpression=MaterialExpressionConstant’MaterialExpressionConstant_8’
Pins(0)=EdGraphPin’EdGraphPin_208755’
NodePosX=64
NodePosY=720
NodeGuid=18EEF8594DF048FEA5FE72973A51A476
End Object