code: def testBasic(self):
      x_np = [[[[1], [2]], [[3], [4]]]]
      block_size = 2
      x_out = [[[[1, 2, 3, 4]]]]
      for dtype in [
          dtypes.float32,
          dtypes.float16,
          dtypes.bfloat16,
          dtypes.uint8,
      ]:
          self._testOne(x_np, block_size, x_out, dtype=dtype)
  
imports: import numpy
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import errors
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import array_ops
  from tensorflow.python.ops import gen_array_ops
  from tensorflow.python.ops import gradient_checker_v2
  from tensorflow.python.ops import math_ops
  from tensorflow.python.platform import test
  from tensorflow.python.platform import tf_logging
label_desc: Use image node_id 2 for calling the SpaceToDepthTest obj's underlying member method code with example usage: obj.testBasic() without return types