code: def testEmpty(self):
      self._verifySquareRootReal(np.empty([0, 2, 2]))
      self._verifySquareRootReal(np.empty([2, 0, 0]))
  
imports: import numpy
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import errors_impl
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import gen_linalg_ops
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import stateless_random_ops
  from tensorflow.python.platform import test
label_desc: Use image node_id 9 for calling the SquareRootOpTest obj's underlying member method code with example usage: obj.testEmpty() without return types