def count_non_zeros(*iterables):
  """Returns total number of non 0 elements in given iterables.

  Args:
    *iterables: Any number of the value None or iterables of numeric values.
  """
  result = 0
  for iterable in iterables:
    if iterable is not None:
      result += sum(1 for element in iterable if element != 0)
  return result