docs: def dummy_func(arg1, arg2, arg3=None, arg4=[1, 2, 3], arg5={}, **kwargs):
      """
      test func for kwargs parseing
      """
      foo = kwargs.get('foo', None)
      bar = kwargs.pop('bar', 4)
      foo2 = kwargs['foo2']
      foobar = str(foo) + str(bar) + str(foo2)
      return foobar