/// <summary>
 /// Get count of ListItems in SharePoint List
 /// </summary>
 /// <param name="webUrl">URL of SharePoint Web which contains the list</param>
 /// <param name="accessToken">OAuth Access Token to be used as authentication with SharePoint REST API</param>
 /// <returns>Count of List Items</returns>
 public virtual int GetCount(string webUrl, string accessToken = "")
 {
     accessToken = GetAccessToken(accessToken);
     return(Repository.Count(webUrl, accessToken));
 }