code: def test_empty_scalar(self, xp, dtype, order):
      a = xp.empty((), dtype=dtype, order=order)
      a.fill(0)
      return a
  
imports: import numpy
  import pytest
  import warnings
  import cupy
  from cupy import testing
label_desc: Use image node_id 4 for calling the TestBasic obj's underlying member method code with example usage: obj.test_empty_scalar(xp, dtype, order) and returns: a