Example:

var GLOBAL = 1
tonim:
  (a, b) = (1, 2)  # NOTE these parentheses cannot omitted, unlike Python
  assert (a, b) == (1, 2)
  (_, a) = (1, 2)
  assert a == 2
  (b, *_, a) = [1,2,3]
  assert a == 3
  # see doc of unpack in ./stmt/unpack.nim for details

  num = 8
  global GLOBAL
  GLOBAL = 3
  doAssertRaises ValueError: raise ValueError
  doAssertRaises ValueError: raise ValueError()
  doAssertRaises ValueError: raise ValueError("msg")
  doAssertRaises ValueError:
    # Nim-favor is remained.
    raise newException(ValueError,"msg")
assert GLOBAL == 3