def METHOD_NAME(self, oncall_org_id, backend, slack_id: str) -> requests.models.Response:
    url = urljoin(f"{self._slack_connectors_url}/", "check_installation_possible")
    url += f"?slack_team_id={slack_id}&oncall_org_id={oncall_org_id}&backend={backend}"
    return self._get(url=url)