sec-edgar: error saving files

I installed the API and run the next couple of code lines. I got an error when I wanted to save the filing.

from secedgar.filings import FilingType, Filing
from datetime import datetime

filing = Filing(cik_lookup='aapl',
                filing_type=FilingType.FILING_10K,
                start_date=datetime(2015, 1, 1),
                end_date=datetime(2019, 1, 1))

filing.save('./reports')

The following error is rising when I run the last command:

`--------------------------------------------------------------------------- RuntimeError Traceback (most recent call last) <ipython-input-9-ae9d2e927b58> in <module> ----> 1 filing.save(‘FFS’)

~.conda\envs\Keras\lib\site-packages\secedgar\filings\filing.py in save(self, directory, dir_pattern, file_pattern) 222 223 loop = asyncio.get_event_loop() –> 224 loop.run_until_complete(self.client.wait_for_download_async(inputs))

~.conda\envs\Keras\lib\asyncio\base_events.py in run_until_complete(self, future) 568 future.add_done_callback(_run_until_complete_cb) 569 try: –> 570 self.run_forever() 571 except: 572 if new_task and future.done() and not future.cancelled():

~.conda\envs\Keras\lib\asyncio\base_events.py in run_forever(self) 523 self._check_closed() 524 if self.is_running(): –> 525 raise RuntimeError(‘This event loop is already running’) 526 if events._get_running_loop() is not None: 527 raise RuntimeError(

RuntimeError: This event loop is already running 10it [00:01, 9.88it/s]`