code: def ref_data(self, A_size, dtype, transform_A, transform_B):
      a_np = (100 * np.random.uniform(size=A_size)).astype(dtype)
      b_np = a_np
  
      if transform_A:
          a_np = a_np.reshape((-1, 4))
  
      if transform_B:
          b_np = b_np.reshape((-1, 4))
  
      return a_np, b_np
  
imports: import functools
  import sys
  import pytest
  import numpy
  import tvm
  import tvm.testing
  from tvm import te
  from tvm.tir.stmt_functor import post_order_visit
  from tvm.driver.build_module import schedule_to_module
label_desc: Use image node_id 2 for calling the TestTransformCache obj's underlying member method code with example usage: obj.ref_data(A_size, dtype, transform_A, transform_B) and returns: a_np,  b_np