Oxide - Can't figure out why RustIO.HasFriend fails

Im really noob at programing and thats why i try this in javascript.

Does anybody have any idea why i get error everytime on RustIO.HasFriend function?
I have tried it without if and as toString(myID). And i have even tried to put there some random IDs like "76561197961738671" but still i cannot get anything from it always error in there

Im really clueless now as the RustIO.IsInstalled work just fine!

Any clarification on my error will be much appreciated.

Code:

var friendstest = {
    Title : "Friends",
    Description : "Testing of RustIO Friends",
    Author : "Pleskac",
    Version : V(0, 1, 0),
    ResourceId : 666,OnPluginLoaded : function () {
    RustIO = plugins.Find('RustIO');
    if(RustIO.IsInstalled = true){
    print("OnPluginLoaded works!");
    //this actually works well!!
        command.AddChatCommand("friend", this.Plugin, "friend")
        }
},friend: function(player, command, arg) {
    RustIO = plugins.Find('RustIO');
    if(arg[0] == null){
        rust.SendChatMessage(player, "Friend", "FAIL..");
        return;}
    switch (arg[0]){
      case "test":  
      var myID = rust.UserIDFromPlayer(player);
      if(arg[1] == null){
          rust.SendChatMessage(player, "Friend", "Give me a name!");
          return;}
      var friendname = arg[1];
      friendname = friendname.toLowerCase();
      var global = importNamespace("");
      var findID = global.BasePlayer.Find(friendname);
      var friendID = rust.UserIDFromPlayer(findID);
        rust.SendChatMessage(player, "Friend", "Your Steam ID is: " + myID);
        rust.SendChatMessage(player, "Friend", "Your Friend Steam ID is: " + friendID);
        if(RustIO.HasFriend(myID , friendID) = true){
            rust.SendChatMessage(player, "Friend", "You are already friends!");
            }else
                rust.SendChatMessage(player, "Friend", "You are not friend!");
        break;
            }
        }
    }

Can't figure out why RustIO.HasFriend fails

Pleskac

dcode