<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def setup_client(self):
 """The command registers the client for communication protection. This will be used to obtain an access token via the Get Client Token command. The access token will be passed as a protection_access_token parameter to other commands. Note: If you are using the oxd-https-extension, you must setup the client Returns: **dict:** the client setup information Example response:: { "oxd_id":"6F9619FF-8B86-D011-B42D-00CF4FC964FF", "op_host": "<op host>", "client_id":"<client id>", "client_secret":"<client secret>", "client_registration_access_token":"<Client registration access token>", "client_registration_client_uri":"<URI of client registration>", "client_id_issued_at":"<client_id issued at>", "client_secret_expires_at":"<client_secret expires at>" } """

        # add required params for the command
        params = {
            "authorization_redirect_uri": self.authorization_redirect_uri,
			"oxd_rp_programming_language": "python",
            }

        # add other optional params if they exist in config
        for op in self.opt_params:
            if self.config.get("client", op):
                params[op] = self.config.get("client", op)

        for olp in self.opt_list_params:
            if self.config.get("client", olp):
                params[olp] = self.config.get("client", olp).split(",")

        logger.debug("Sending command `setup_client` with params %s", params)

        response = self.msgr.request("setup_client", **params)
        logger.debug("Received response: %s", response)

        if response['status'] == 'error':
            raise OxdServerError(response['data'])
        data = response["data"]

        self.oxd_id = data["oxd_id"]
        self.config.set("oxd", "id", data["oxd_id"])
        self.config.set("client", "client_id", data["client_id"])
        self.config.set("client", "client_secret", data["client_secret"])
        if data["client_registration_access_token"]:
            self.config.set("client", "client_registration_access_token",
                            data["client_registration_access_token"])
        if data["client_registration_client_uri"]:
            self.config.set("client", "client_registration_client_uri",
                            data["client_registration_client_uri"])
        self.config.set("client", "client_id_issued_at",
                        str(data["client_id_issued_at"]))

        return data