public CountDownLatch getPaymentAsync(String returnId, String paymentId, String responseFields, AsyncCallback<com.mozu.api.contracts.commerceruntime.payments.Payment> callback) throws Exception
	{
		MozuClient<com.mozu.api.contracts.commerceruntime.payments.Payment> client = com.mozu.api.clients.commerce.ReturnClient.getPaymentClient( returnId,  paymentId,  responseFields);
		client.setContext(_apiContext);
		return client.executeRequest(callback);

	}
public CountDownLatch getPaymentAsync ( String returnId , String paymentId , String responseFields , AsyncCallback < com . mozu . api . contracts . commerceruntime . payments . Payment > callback ) throws Exception { MozuClient < com . mozu . api . contracts . commerceruntime . payments . Payment > client = com . mozu . api . clients . commerce . ReturnClient . getPaymentClient ( returnId , paymentId , responseFields ) ; client . setContext ( _apiContext ) ; return client . executeRequest ( callback ) ; }
<p><pre><code>
Return return = new Return();
CountDownLatch latch = return.getPayment( returnId,  paymentId,  responseFields, callback );
latch.await()	 * </code></pre></p>
@param paymentId Unique identifier of the payment for which to perform the action.
@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
@return com.mozu.api.contracts.commerceruntime.payments.Payment
@see com.mozu.api.contracts.commerceruntime.payments.Payment