code: def test_corrcoef_diag_exception(self, xp, dtype):
      a = testing.shaped_arange((1, 3), xp, dtype)
      return xp.corrcoef(a)
  
imports: import unittest
  import numpy
  import pytest
  import cupy
  from cupy import testing
label_desc: Use image node_id 2 for calling the TestCorrcoef obj's underlying member method code with example usage: obj.test_corrcoef_diag_exception(xp, dtype) and returns: xp