public CountDownLatch getReturnItemsAsync(String returnId, AsyncCallback<com.mozu.api.contracts.commerceruntime.returns.ReturnItemCollection> callback) throws Exception
	{
		return getReturnItemsAsync( returnId,  null, callback);
	}
public CountDownLatch getReturnItemsAsync ( String returnId , AsyncCallback < com . mozu . api . contracts . commerceruntime . returns . ReturnItemCollection > callback ) throws Exception { return getReturnItemsAsync ( returnId , null , callback ) ; }
<p><pre><code>
Return return = new Return();
CountDownLatch latch = return.getReturnItems( returnId, callback );
latch.await()	 * </code></pre></p>
@param returnId Unique identifier of the return whose items you want to get.
@param  callback callback handler for asynchronous operations
@return com.mozu.api.contracts.commerceruntime.returns.ReturnItemCollection
@see com.mozu.api.contracts.commerceruntime.returns.ReturnItemCollection