code: def test_step(self):
      v = Tensor.arange(10)
      numpy_testing_assert_equal_helper(v[::1], v)
      numpy_testing_assert_equal_helper(v[::2], [0, 2, 4, 6, 8])
      numpy_testing_assert_equal_helper(v[::3], [0, 3, 6, 9])
      numpy_testing_assert_equal_helper(v[::11], [0])
      numpy_testing_assert_equal_helper(v[1:6:2], [1, 3, 5])
  
imports: import math, unittest, random, copy
  import numpy
  from tinygrad import Tensor, dtypes, Device
  from tinygrad.lazy import LazyBuffer
  from tinygrad.shape.shapetracker import ShapeTracker
  from tinygrad.shape.view import View
  from tinygrad.helpers import CI
label_desc: Use image node_id 6 for calling the TestIndexing obj's underlying member method code with example usage: obj.test_step() without return types