Object
{
    string status[                 # The status of the line item in question
                  SHIPPED,         # Indicates the lineItem in question was shipped
                  CANCELLED];      # Indicates the lineItem in question was cancelled

    ref Order order;               # The complete order object that owns the line item
                                   # that now has a newly SHIPPED or CANCELLED line item

    array{ref OrderLineItemChange} lineItems;    # The line items that newly SHIPPED or were CANCELLED

    string trackingNumber?;        # If the line items shipped, this is the tracking number of the shipmentt
};

{
    "status": "SHIPPED",
    "order": {...},
    "orderLineItem": {...},
    "package": {...}
}