code: def test_normalize(self, device, dtype, batch_size):
      q1 = Quaternion.random(batch_size, device, dtype)
      q1_n = q1.normalize().norm()
      self.assert_close(q1_n, q1_n.new_ones(q1_n.shape))
  
imports: import pytest
  import torch
  from kornia.geometry.quaternion import Quaternion
  from kornia.testing import assert_close
label_desc: Use image node_id 18 for calling the TestQuaternion obj's underlying member method code with example usage: obj.test_normalize(device, dtype, batch_size) without return types