fun fib(n) {
  if (n < 2) {
    return n;
  }
  return fib(n - 2) + fib(n - 1);
}

class Tree {
  stuff() {}
}

var my_list = [fib, Tree, nil, true];
print(my_list == [fib, Tree, nil, true]); # expect: true

var a = [2, 4, 6];
var b = [];
b.append(2);
b.append(4);
b.append(6);
print(a == b); # expect: true
print(a == [2, 4, 6]); # expect: true
print(b == [2, 4, 6]); # expect: true

var a = [-5, 2000];
var b = [];
b.append(-5);
b.append(2000);
print(a == b); # expect: true
print(a == [-5, 2000]); # expect: true
print(b == [-5, 2000]); # expect: true