code: def test_different_size(self):
      assert internal.vector_equal([1, 2, 3], [1, 2]) is False
  
imports: import math
  import unittest
  import numpy
  import pytest
  from cupy._core import internal
  from cupy import testing
label_desc: Use image node_id 4 for calling the TestVectorEqual obj's underlying member method code with example usage: obj.test_different_size() without return types