docs: function getExistingConfigSources(sourceType) {
      const sources = new Set();
      try {
          const config = utils.loadConfig(true);
          for (const profile in config) {
              if (config[profile][sourceType]) {
                  sources.add(config[profile][sourceType]);
              }
          }
      } catch (ex) {
          // Swallow
      }
      return Array.from(sources);
  }