#include <Toggle.h>
const byte buttonPin = 4;
Toggle button;

void click1() {Serial.println(F("1 click"));}
void click2() {Serial.println(F("2 clicks"));}
void click3() {Serial.println(F("3 clicks"));}
void click4() {Serial.println(F("4 clicks"));}

void setup() {
  Serial.begin(115200);
  button.begin(buttonPin);
  button.setInputInvert(true);
  pinMode(buttonPin, INPUT); // do I need this ??
  // how could I use  this button.setInputMode(Toggle::inputMode::input_pulldown);  
}

void loop() {
  button.poll();
  switch(button.pressCode()) {
    case 0xF1: click1(); break;
    case 0xF2: click2(); break;
    case 0xF3: click3(); break;
    case 0xF4: click4(); break;
    default: break;
  }
}