Problem with NT NPORT-P Filing Type

[scrappyreed]

Great package! Really helpful API.

One issue: I was missing the Q2 NPORT-P filing for CIK 0001041673, Series S000025526. Discovered on the web query it may be due to the filing type being "NT NPORT-P"

However, even when querying for that filing type through the API, nothing is returned:
In [22]: get_filing_urls_to_download("NT NPORT-P",cik,10,"2020-01-01","2020-12-31",True)
Out[22]: []
In [23]: get_filing_urls_to_download("NT NPORT-P NPORT-P",cik,10,"2020-01-01","2020-12-31",True)
Out[23]: []_

I even tried looping through all the supported filing types, but the missing report was not returned. Is there a way to query for all filings as there is in the web query I made?