code: def _make_matrix(self, m, n, trans, order, dtype):
      if trans == "N":
          shape = (m, n)
      else:
          shape = (n, m)
      return testing.shaped_random(
          shape, cupy, dtype=dtype, order=order, scale=1.0
      )
  
imports: import numpy
  import pytest
  import cupy
  from cupy import cublas
  from cupy import testing
label_desc: Use image node_id 1 for calling the TestGemmAndGeam obj's underlying member method code with example usage: obj._make_matrix(m, n, trans, order, dtype) and returns: testing