networkView.RPC("MyFunction", RPCMode.All, "someValue");

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
void Awake() {
networkView.RPC("MyFunction", RPCMode.All, "someValue");
}
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

def Awake():
networkView.RPC('MyFunction', RPCMode.All, 'someValue')