Convert unityscript to C sharp, localRotation

Unity Engine
1

I’m trying to convert this:

private var rightUpperArm : Transform;
var rightUpperArmLocalRotation : Quaternion = rightUpperArm.localRotation;
rightUpperArm.localRotation = Quaternion.Lerp(rightUpperArmLocalRotation, rightUpperArm.localRotation, transition);

into C sharp. Could someone please tell me how. Have been trying but are unable to come up with a solution.

2 
private Transform rightUpperArm;
Quaternion rightUpperArmLocalRotation = rightUpperArm.localRotation; // Where do you set rightUpperArm? It will be null here.
rightUpperArm.localRotation =  Quaternion.Lerp( rightUpperArmLocalRotation, rightUpperArm.localRotation, transition ); // Whats 'transition' ?

The code seems a bit strange, you are lerping from and to using the same angle. Nothing will happen.

Regards

Karl