code: def test_round_out(self, xp):
      a = testing.shaped_random(self.shape, xp, scale=100, dtype="d")
      out = xp.empty_like(a)
      a.round(self.decimals, out)
      return out
  
file_path: cupy/tests/cupy_tests/core_tests/test_ndarray_math.py
imports: import unittest
  import numpy
  from cupy import testing
label_desc: Use image node_id 2 for calling the TestRound obj's underlying member method code with example usage: obj.test_round_out(xp) and returns: out