How to print WiFi MAC address to serial on ESP32 (Arduino)?

It’s as simple as

example.cpp

Serial.println(WiFi.macAddress());

Serial.println(WiFi.macAddress());

example.cpp

#include <Arduino.h>

void setup() {
    Serial.begin(115200);
    Serial.println(WiFi.macAddress());
}

void loop() {
    // ...
}

#include <Arduino.h>

void setup() {
    Serial.begin(115200);
    Serial.println(WiFi.macAddress());
}

void loop() {
    // ...
}

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