code: def test_random(self, device, dtype, batch_size):
      q = Quaternion.random(batch_size, device, dtype)
      q_n = q.normalize().norm()
      self.assert_close(q_n, q_n.new_ones(q_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 6 for calling the TestQuaternion obj's underlying member method code with example usage: obj.test_random(device, dtype, batch_size) without return types