@Override
    protected AWSMainframeModernizationAsync build(AwsAsyncClientParams params) {
        return new AWSMainframeModernizationAsyncClient(params);
    }
Construct an asynchronous implementation of AWSMainframeModernizationAsync using the current builder
configuration.

@param params
       Current builder configuration represented as a parameter object.
@return Fully configured implementation of AWSMainframeModernizationAsync.
aws-java-sdk-mainframemodernization/src/main/java/com/amazonaws/services/mainframemodernization/AWSMainframeModernizationAsyncClientBuilder.java