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

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