code: def test_randn(self):
      self.assertTrue(normal_test(Tensor.randn))
      self.assertTrue(
          equal_distribution(
              Tensor.randn, torch.randn, lambda x: np.random.randn(*x)
          )
      )
  
imports: import math
  import unittest
  import numpy
  import torch
  from tinygrad import nn, dtypes, Tensor
  from functools import partial
label_desc: Use image node_id 2 for calling the TestRandomness obj's underlying member method code with example usage: obj.test_randn() without return types