code: def test_data(self):
      a = Tensor([1, 2, 3, 4], dtype=dtypes.int32)
      dat = a.data()
      assert dat.itemsize == 4
      assert list(dat) == [1, 2, 3, 4]
      assert dat.shape == (4,)
      assert dat[0] == 1
      assert dat[1] == 2
  
file_path: tinygrad/test/test_tensor_data.py
imports: import unittest
  from tinygrad import Tensor, dtypes
label_desc: Use image node_id 1 for calling the TestTensorData obj's underlying member method code with example usage: obj.test_data() without return types