/* Problem: Flatten nested tables */
nested : {
  level1: {
    a: {value: 1},
    b: {value: 2}
  },
  level2: {
    c: {value: 3}
  }
};

/* Recursive flattening function */
flatten : table -> 
  when (t.has table "value") is
    true then table
    _ then reduce @t.merge {} (map @flatten_entry table);

flatten_entry : entry -> 
  when (t.has entry "value") is
    true then entry
    _ then flatten entry;

/* Apply flattening */
flat : flatten nested;
/* Result: {a: {value: 1}, b: {value: 2}, c: {value: 3}} */