Exporting Json events to a text file

[buran]

he others were already there so I think the while loop is to read from all the data and just print it to the screen

That exactly means all events come as one json. They loop over events in order to print them on separate lines. Otherwise thej will print everything on one line.
try

while True:
    data = export_events(token, event_type, batch_size, start_date, end_date, client_id, client_secret)
    if data:
        with open('events.json','w') as outfile:
            json.dump(data,outfile, indent=2, sort_keys=True)