code: @Override
    public Configuration getConfiguration() {
      return Tang.Factory.getTang().newConfigurationBuilder()
          .bindNamedParameter(TcpPortRangeBegin.class, String.valueOf(portRangeBegin))
          .bindNamedParameter(TcpPortRangeCount.class, String.valueOf(portRangeCount))
          .bindNamedParameter(TcpPortRangeTryCount.class, String.valueOf(portRangeTryCount))
          .bindSetEntry(EvaluatorConfigurationProviders.class, TcpPortConfigurationProvider.class)
          .build();
    }
docs: returns a configuration for the class that implements TcpPortProvider so that class can be instantiated.
  somewhere else
  
  @return Configuration.