[WinError 10061] Export data using the Splunk SDKs not working?

[CarbonCriterium]

Apologies if these are very basic questions but I am new to the API and the SDK.  I am running the script below following the guidelines provided in the documentation, but I am getting the following error.  Can anyone point me in the correct direction?

https://docs.splunk.com/Documentation/Splunk/8.1.0/Search/ExportdatausingSDKs

ConnectionRefusedError: [WinError 10061] No connection could be made because the target machine actively refused it

import splunklib.client as client
import splunklib.results as results

HOST =  
PORT = 8089
USERNAME =  
PASSWORD =  


service = client.connect(
    host=HOST,
    port=PORT,
    username=USERNAME,
    password=PASSWORD)

rr = results.ResultsReader(service.jobs.export("search index=_internal earliest=-1h | head 5"))

for result in rr:
    if isinstance(result, results.Message):
        # Diagnostic messages might be returned in the results
        data=(result.type, result.message)
        string_format="%s:%s"
        print(string_format % data)
    elif isinstance(result, dict):
        # Normal events are returned as dicts
        print(result)
assert rr.is_preview == False