docs: public void setUseProxyChainAuth(boolean useProxyChainAuth) {
          if (useProxyChainAuth && (getProxyChainUserName() == null || getProxyChainUserName().isEmpty())) {
              return;
          }
  
          this.useProxyChainAuth = useProxyChainAuth;
          getConfig().setProperty(USE_PROXY_CHAIN_AUTH_KEY, this.useProxyChainAuth);
      }