code: public boolean isEnabled(String featurePath) {
      checkArgument(!Strings.isNullOrEmpty(featurePath));
  
      return config.getConfig(featurePath).getBoolean("enabled");
    }
docs: Checks whether a feature is enabled in the effective configuration.
  
  <p>A feature is identified by a path expression relative to {@link #CONFIG_ROOT}, such as
  {@code context-propagation.executor}. The feature is enabled iff the config element at the
  requested path has a child element {@code enabled} with a value of {@code true}, {@code on}, or
  {@code yes}.
  
  @param featurePath the feature's path expression
  @return true, if enabled, otherwise false
  @since 0.10