Yet Another Wiegand Library minimum code

hello_wiegand.ino

#include <Wiegand.h>
// NOT a standart wiegand library
// Yet another wiegand library v2.0.0 by Paulo Costa
// https://github.com/paulo-raca/YetAnotherArduinoWiegandLibrary
#define PIN_D0 2
#define PIN_D1 3
Wiegand wg;

bool card_read_flag = false;

void setup() { 
	pinMode(PIN_D0, INPUT);
  pinMode(PIN_D1, INPUT);
  wg.onReceive(receivedData, "");
  wg.begin(26, true);
  attachInterrupt(digitalPinToInterrupt(PIN_D0), pinStateChanged, CHANGE);
  attachInterrupt(digitalPinToInterrupt(PIN_D1), pinStateChanged, CHANGE);

  // Sends the initial pin state to the Wiegand library
  pinStateChanged();
}

void loop() {
  if (card_read_flag) {
    card_read_flag = false;
    doSmth();  // your function
  }
}

void receivedData(uint8_t* data, uint8_t bits, const char* message) {
  card_read_flag = true;
  for (int i=0; i < 3; i++)
    massiv[i] = data[i];
}