docs: def unite_dict(a, b):
      """
      >>> a = {'name': 'Sylvanas'}
      >>> b = {'gender': 'Man'}
      >>> unite_dict(a, b)
      {'name': 'Sylvanas', 'gender': 'Man'}
      """
      c = {}
      c.update(a)
      c.update(b)
      return c