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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def request_token(self) -> None: """ Requests a new Client Credentials Flow authentication token from the Spotify API and stores it in the `token` property of the object. Raises: requests.HTTPError: If an HTTP error occurred during the request. """

        response: requests.Response = requests.post(
            self._TOKEN_URL,
            auth=HTTPBasicAuth(self._client_id, self._client_key),
            data={"grant_type": self._GRANT_TYPE},
            verify=True
        )
        response.raise_for_status()
        self._token = response.json()
        self._token_expires_at = time.time() + self._token["expires_in"]