/// <summary>
 /// Update a work item
 /// </summary>
 /// <param name="workItem">The work item with the updated fields</param>
 /// <returns>The updated work item</returns>
 public WorkItem Update(WorkItem workItem)
 {
     return this.Put<WorkItem>(string.Format(ApiUrls.WorkItems.Put, workItem.id), SerializationHelper.SerializeToJson(workItem.fields));
 }
 /// <summary>
 /// Create a new work item
 /// </summary>
 /// <param name="workItem">The work item to be created</param>
 /// <returns>The created work item</returns>
 public WorkItem Create(WorkItem workItem)
 {
     return this.Post<WorkItem>(ApiUrls.WorkItems.Post, SerializationHelper.SerializeToJson(workItem));
 }