code: def test_create_mode_ascii(self):
      m = cutensor.create_mode("x", "y")
      assert m.ndim == 2
      assert repr(m) == "mode(120, 121)"
  
imports: import gc
  import numpy
  import pytest
  import cupy
  from cupy._core import _routines_linalg
  from cupy import testing
  from cupy.cuda import device
  from cupy.cuda import cutensor
label_desc: Use image node_id 2 for calling the TestMode obj's underlying member method code with example usage: obj.test_create_mode_ascii() without return types