    will fail with the message:
 
       Assertion with > failed
-      code:  1 + 2 + 3 + 4 > 15
+      code:  assert 1 + 2 + 3 + 4 > 15
       left:  10
       right: 15
 

  you'll see:

      match (=) failed
      code:  [1] = [2]
      right: [2]

  Keep in mind that `assert` does not change its semantics

  `some_fun()` returns `13`):

      Comparison (using ==) failed in:
      code:  assert some_fun() == 10
      left:  13
      right: 10

