code: def testSqrt(self):
      self._testUnaryOp(np_math_ops.sqrt, np.sqrt, "sqrt")
  
imports: import itertools
  from absl.testing import parameterized
  import numpy
  from tensorflow.python.framework import errors
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import tensor
  from tensorflow.python.ops.numpy_ops import np_array_ops
  from tensorflow.python.ops.numpy_ops import np_arrays
  from tensorflow.python.ops.numpy_ops import np_math_ops
  from tensorflow.python.platform import test
label_desc: Use image node_id 14 for calling the MathTest obj's underlying member method code with example usage: obj.testSqrt() without return types