@Override
    public java.util.concurrent.Future<UpdateAliasResult> updateAliasAsync(UpdateAliasRequest request) {

        return updateAliasAsync(request, null);
    }
Simplified method form for invoking the ListFunctions operation with an AsyncHandler.

@see #listFunctionsAsync(ListFunctionsRequest, com.amazonaws.handlers.AsyncHandler)
aws-java-sdk-lambda/src/main/java/com/amazonaws/services/lambda/AWSLambdaAsyncClient.java