code: def test_weights_and_axis(self):
      x = (
          numpy.random.uniform(-1, 1, 24)
          .reshape(2, 3, 4)
          .astype(self.dtype)
      )
      w = (
          numpy.random.uniform(-1, 1, 6)
          .reshape(2, 3)
          .astype(self.dtype)
      )
      with self.assertRaises(ValueError):
          functions.average(x, axis=(0, 1), weights=w)
  
imports: import unittest
  import numpy
  import six
  from chainer import functions
  from chainer import testing
  from chainer.testing import attr
  from chainer import utils
label_desc: Use image node_id 3 for calling the TestAverageDuplicateValueInAxis obj's underlying member method code with example usage: obj.test_weights_and_axis() without return types