code: def test_i0(self, xp, dtype):
      a = testing.shaped_random((2, 3), xp, dtype)
      return xp.i0(a)
  
imports: import unittest
  import cupy
  from cupy import testing
label_desc: Use image node_id 1 for calling the TestSpecial obj's underlying member method code with example usage: obj.test_i0(xp, dtype) and returns: xp