public CountDownLatch updateReturnAsync(com.mozu.api.contracts.commerceruntime.returns.Return ret, String returnId, String responseFields, AsyncCallback<com.mozu.api.contracts.commerceruntime.returns.Return> callback) throws Exception
	{
		MozuClient<com.mozu.api.contracts.commerceruntime.returns.Return> client = com.mozu.api.clients.commerce.ReturnClient.updateReturnClient( ret,  returnId,  responseFields);
		client.setContext(_apiContext);
		return client.executeRequest(callback);

	}
public CountDownLatch updateReturnAsync ( com . mozu . api . contracts . commerceruntime . returns . Return ret , String returnId , String responseFields , AsyncCallback < com . mozu . api . contracts . commerceruntime . returns . Return > callback ) throws Exception { MozuClient < com . mozu . api . contracts . commerceruntime . returns . Return > client = com . mozu . api . clients . commerce . ReturnClient . updateReturnClient ( ret , returnId , responseFields ) ; client . setContext ( _apiContext ) ; return client . executeRequest ( callback ) ; }
<p><pre><code>
Return return = new Return();
CountDownLatch latch = return.updateReturn( ret,  returnId,  responseFields, callback );
latch.await()	 * </code></pre></p>
@param responseFields Filtering syntax appended to an API call to increase or decrease the amount of data returned inside a JSON object. This parameter should only be used to retrieve data. Attempting to update data using this parameter may cause data loss.
@param returnId Unique identifier of the return whose items you want to get.
@param  callback callback handler for asynchronous operations
@param ret Properties of a return of one or more previously fulfilled items.
@return com.mozu.api.contracts.commerceruntime.returns.Return
@see com.mozu.api.contracts.commerceruntime.returns.Return
@see com.mozu.api.contracts.commerceruntime.returns.Return