/* Test just the function calls section */

/* Helper functions for testing */
is_even : n -> n % 2 = 0;

/* Number classification using function calls in patterns */
classify_number : n ->
  when (is_even n) is
    true then "even number"
    false then "odd number";

/* Test number classification */
even_class : classify_number 4;
odd_class : classify_number 7;

..out even_class;
..out odd_class;