Rate an item in sharepoint

gistfile1.txt

var securePassword = new System.Security.SecureString();
  		foreach (char c in this.password)
			{
				securePassword.AppendChar(c);
			}

			using (ClientContext ctx = new ClientContext(this.siteUrl) { Credentials = new SharePointOnlineCredentials(this.username, securePassword) })
			{
                Web w = ctx.Web;
				List l = w.Lists.GetByTitle(CycloneTestConstants.WellKnownCycloneList);
                ctx.Load(l, info => info.Id);
                ctx.ExecuteQuery();
                string ListID = l.Id.ToString();
                Microsoft.Office.Server.ReputationModel.Reputation.SetRating(ctx, ListID, 94, 5);
                ctx.ExecuteQuery();
			}