docs: @Override
      public void checkProcessorConfig(Properties properties) {
          String exportClientClass = properties.getProperty(EXPORT_TO_TYPE);
          Preconditions.checkNotNull(exportClientClass, "export to type is undefined or custom export plugin class missing.");
  
          try {
              final Class<?> clientClass = Class.forName(exportClientClass);
              ExportClientBase client = (ExportClientBase) clientClass.newInstance();
              client.configure(properties);
          } catch(Throwable t) {
              throw new RuntimeException(t);
          }
      }