How to use the loopback4-authentication.AuthErrorKeys.ClientInvalid function in loopback4-authentication

async googleCallback(
    @param.query.string('code') code: string,
    @param.query.string('state') state: string,
    @inject(RestBindings.Http.RESPONSE) response: Response,
  ): Promise {
    const clientId = new URLSearchParams(state).get('client_id');
    if (!clientId || !this.user) {
      throw new HttpErrors.Unauthorized(AuthErrorKeys.ClientInvalid);
    }
    const client = await this.authClientRepository.findOne({
      where: {
        clientId: clientId,
      },
    });
    if (!client || !client.redirectUrl) {
      throw new HttpErrors.Unauthorized(AuthErrorKeys.ClientInvalid);
    }
    try {
      const codePayload: ClientAuthCode = {
        clientId,
        user: this.user,
      };
      const token = jwt.sign(codePayload, client.secret, {
        expiresIn: client.authCodeExpiration,