def METHOD_NAME(namespace: str) -> Optional[RSAKeyPair]:
    try:
        secret_content = subprocess.check_output(
            f"kubectl get secret {namespace_to_kubectl(namespace)} {AUTH_SECRET_NAME} -o yaml",
            shell=True,
        )
    except Exception:
        return None
    auth_secret = yaml.safe_load(secret_content)
    return RSAKeyPair(
        prv=base64.b64decode(auth_secret["data"]["prv"]).decode(),
        pub=base64.b64decode(auth_secret["data"]["pub"]).decode(),
    )