Method catch

src/core/pyproxy.ts:2637–2640

* Calls :func:`asyncio.ensure_future` on the awaitable and executes * ``onRejected(error)`` if the :py:class:`~asyncio.Future` fails. * * See the documentation for :js:meth:`Promise.catch`. * * @param onRejected A handler called with the error as an argument if the * awaitable fail

(onRejected: (reason: any) => any)

   * @returns The resulting Promise.
   */
  catch(onRejected: (reason: any) => any) {
    let promise = this._ensure_future();
    return promise.catch(onRejected);
  }
  /**
   * Calls :func:`asyncio.ensure_future` on the awaitable and executes
   * ``onFinally(error)`` when the :py:class:`~asyncio.Future` resolves.