/// <summary>
 /// Remove an existing Invertory from the collection
 /// </summary>
 /// <pdGenerated>Default Remove</pdGenerated>
 public void RemoveInvertory(Invertory oldInvertory)
 {
     if (oldInvertory == null)
     {
         return;
     }
     if (this.invertory != null)
     {
         if (this.invertory.Contains(oldInvertory))
         {
             this.invertory.Remove(oldInvertory);
         }
     }
 }
 /// <summary>
 /// Add a new Invertory in the collection
 /// </summary>
 /// <pdGenerated>Default Add</pdGenerated>
 public void AddInvertory(Invertory newInvertory)
 {
     if (newInvertory == null)
     {
         return;
     }
     if (this.invertory == null)
     {
         this.invertory = new List <Invertory>();
     }
     if (!this.invertory.Contains(newInvertory))
     {
         this.invertory.Add(newInvertory);
     }
 }