@Override
    protected AmazonConfig build(AwsSyncClientParams params) {
        return new AmazonConfigClient(params);
    }
Construct a synchronous implementation of AmazonConfig using the current builder configuration.

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