How to ping gateway in ESP32

if(Ping.ping(WiFi.gatewayIP(), 1)) { // 1: Just one ping
  // TODO What to do on ping succes
  // Example: Print response time 
  Serial.print(Ping.averageTime()); // Unit: ms
  Serial.println(" ms");
} else {
  // TODO What to do if ping failed?
}

#include <Arduino.h>
#include <WiFi.h>

#include <ESP32Ping.h>

void waitForWiFiConnectOrReboot(bool printOnSerial=true) {
  uint32_t notConnectedCounter = 0;
  while (WiFi.status() != WL_CONNECTED) {
      delay(100);
      if(printOnSerial) {
        Serial.println("Wifi connecting...");
      }
      notConnectedCounter++;
      if(notConnectedCounter > 50) { // Reset board if not connected after 5s
          if(printOnSerial) {
            Serial.println("Resetting due to Wifi not connecting...");
          }
          ESP.restart();
      }
  }
  if(printOnSerial) {
    // Print wifi IP addess
    Serial.println("IP address: ");
    Serial.println(WiFi.localIP());
  }
}

#define LED_BUILTIN 2

void setup() {
  Serial.begin(115200);
  WiFi.begin("MyWifiSSID", "MyWifiPassword");
  // Wait for wifi to be connected
  waitForWiFiConnectOrReboot();
  // Initialize LED
  pinMode(LED_BUILTIN,OUTPUT);
}

void loop() {
  if(Ping.ping(WiFi.gatewayIP())) {
    digitalWrite(LED_BUILTIN,HIGH);
    Serial.print(Ping.averageTime());
    Serial.println(" ms");
  } else {
    digitalWrite(LED_BUILTIN, LOW);
    Serial.println("Error :(");
  }

}