How do I add my client key and client secret into this python scripting to where it passes?

Question

I am trying to access data from a website in which I have an API key and secret for using python. I am having trouble connecting to this API. I am positive that my API key and secret are correct.

My following code is:

import requests
import pandas as pd
import json

url = 'https://website/$export'
payload = {'******Client_Key*********':'**************Client_Secret*****************'}
r = request.get(url, params = payload)

This is the error: <Response [401]>

{'issue': [{'code': 'exception', 'details': {'coding': [{'code': 'Invalid Token', 'display': '', 'system': 'http://hl7.org/fhir/ValueSet/operation-outcome'}], 'text': ''}, 'severity': 'error'}], 'resourceType': 'OperationOutcome'}