code: def test_pos_zerodim(self):
      self.check_zerodim_op(operator.pos)
  
imports: import operator
  import unittest
  import numpy
  import pytest
  import cupy
  from cupy import testing
label_desc: Use image node_id 11 for calling the TestArrayUnaryOp obj's underlying member method code with example usage: obj.test_pos_zerodim() without return types