code: public static LightblueClientConfiguration fromInputStream(InputStream propertiesStream) {
          try {
              Properties properties = new Properties();
              properties.load(loadInputStream(propertiesStream));
  
              return fromObject(properties);
          } catch (IOException e) {
              LOGGER.error(propertiesStream + " could not be read", e);
              throw new LightblueClientConfigurationException("Could not read properties file from "
                      + "input stream, " + propertiesStream, e);
          }
      }
docs: For client configuration property keys, see
  {@link com.redhat.lightblue.client.PropertiesLightblueClientConfiguration}.