I'm trying to connect my ESP32 and log data to Tinamous.
the first command in the project is "WiFiClient networkClient; " I don't find any information on what to write in the commando and when verify the project it says "WiFiClient" does not name a type.
// -----------------------------------------------------------------
    // Add the Arduino MQTT library from the library manager
    // See https://github.com/256dpi/arduino-mqtt for more details.
    // This example uses the WiFi101 library as well running on
    // an Arduino MKR 1000
    // -----------------------------------------------------------------
    // Unsecure (port 1833)
    //WiFiClient networkClient;
    // SSL based connection (port 8883)
    WiFiSSLClient networkClient;
    // Specify the buffer size as the default is fairly small.
    MQTTClient mqttClient(2048);
    void setup() {
     // Ensure your network is connected.
     WiFi.begin(XXX, XXX);
     // replace 'demo' with your Tinamous account name.
     // Connect on port 1883 for UNSECURE connection
     // or use 8883 for SSL secured if your platform supports it.
     // Note the different WiFiClient needs to be used.
     mqttClient.begin(nabofarm.tinamous.com, 8883, networkClient);
     // If you subscribe to to MQTT topics, add the message handler.
     mqttClient.onMessage(messageReceived);
     connect();
    }
    void connect() {
      // Connect as the device "OfficeFans" to the Tinamous account "demo"
      // using the "OfficeFansPassword" as the password.
      // Username and password should have been set when adding the device through Tinamous devices page.
      if (mqttClient.connect("ClientId-23", "OfficeFans.demo", "OfficeFansPassword")) {
        // Connected
        return;
      }
      // Handle connection failure.
      // Error code -10 (LWMQTT_CONNECTION_DENIED) is a username/password error.
      if (mqttClient.lastError() == LWMQTT_CONNECTION_DENIED) {
        Serial.println("Access denied. Check your username and password. Username should be 'DeviceName.AccountName' e.g. MySensor.MyHome");
      }
    }