code: function (obj) {
      return function (subscriber) {
          var obs = obj[_symbol_observable__WEBPACK_IMPORTED_MODULE_0__["observable"]]();
          if (typeof obs.subscribe !== 'function') {
              throw new TypeError('Provided object does not correctly implement Symbol.observable');
          }
          else {
              return obs.subscribe(subscriber);
          }
      };
  }
docs: PURE_IMPORTS_START _symbol_observable PURE_IMPORTS_END