// Nested function calls
engrave add(a: arcana, b: arcana) -> arcana {
    reveal a + b;
};

engrave add_three_numbers(x: arcana, y: arcana, z: arcana) -> arcana {
    reveal add(add(x, y), z);
};

forge result: arcana = add_three_numbers(1, 2, 3);
unveil(result);

// Function has no return type
engrave unveil_add(a: arcana, b: arcana) -> abyss {
    unveil(a + b);
    reveal;
};
unveil_add(100, 28);