def METHOD_NAME(usr):
    global signed_in
    if signed_in is True:
        tkn = request.headers.get(AUTH_HEADER, None)
        if tkn is None:
            return make_response(jsonify({"message": "Bad Request, missing request token."}), 400)
        if not tkn.startswith("Bearer "):
            return make_response(jsonify({"message": "Bad Request, malformed bearer token."}), 400)
        tkn = tkn.split()[1]
        user_info = _decode(tkn)
        slsx_userinfo = {
            "data": {
                "user": {
                    "id": user_info["usr"],
                    "username": user_info["name"],
                    "email": user_info["email"],
                    "firstName": user_info["first_name"],
                    "lastName": user_info["last_name"],
                    "hicn": user_info["hicn"],
                    "mbi": user_info["mbi"],
                },
            },
        }
        signed_in = False
        return make_response(jsonify(slsx_userinfo))
    else:
        signed_in = True
        return make_response(jsonify({"message": "not signed in."}), 403)