code: def _trans_matrix(self, a, trans):
      if trans == "N":
          return a
      return a.T
  
imports: import numpy
  import pytest
  import cupy
  from cupy import cublas
  from cupy import testing
label_desc: Use image node_id 2 for calling the TestSyrk obj's underlying member method code with example usage: obj._trans_matrix(a, trans) and returns: a, a