code: public ServiceFuture<ServiceKeysInner> listKeysAsync(String resourceGroupName, String mediaServiceName, final ServiceCallback<ServiceKeysInner> serviceCallback) {
          return ServiceFuture.fromResponse(listKeysWithServiceResponseAsync(resourceGroupName, mediaServiceName), serviceCallback);
      }
docs: Lists the keys for a Media Service.
  
  @param resourceGroupName Name of the resource group within the Azure subscription.
  @param mediaServiceName Name of the Media Service.
  @param serviceCallback the async ServiceCallback to handle successful and failed responses.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceFuture} object