/// <summary>
 /// Deprecated Method for adding a new object to the product_type EntitySet. Consider using the .Add method of the associated ObjectSet&lt;T&gt; property instead.
 /// </summary>
 public void AddToproduct_type(product_type product_type)
 {
     base.AddObject("product_type", product_type);
 }
 /// <summary>
 /// Create a new product_type object.
 /// </summary>
 /// <param name="product_type_id">Initial value of the product_type_id property.</param>
 public static product_type Createproduct_type(global::System.Int32 product_type_id)
 {
     product_type product_type = new product_type();
     product_type.product_type_id = product_type_id;
     return product_type;
 }