docs: function buildHasteMap(rootPath, prefix) {
      var prefix = prefix || 'haste-map-provider';
      return new HasteMapBuilder({
          "extensions": [
            "snap",
            "js",
            "json",
            "jsx",
            "node"
          ],
          "ignorePattern": /SOME_COMPLEX_IGNORE_PATTERN_UNLIKELY_TO_HAPPEN/,
          "maxWorkers": 7,
          "name": prefix + "-" + rootPath.replace(/[\/\\]/g, '_'),
          "platforms": [
            "ios",
            "android"
          ],
          "providesModuleNodeModules": [],
          "resetCache": false,
          "retainAllFiles": false,
          "roots": [
            rootPath,
          ],
          "useWatchman": true,
      }).build();
  }