code: def testExp(self):
      self._testUnaryOp(np_math_ops.exp, np.exp, "exp", True)
  
imports: import itertools
  from absl.testing import parameterized
  import numpy
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import errors
  from tensorflow.python.framework import flexible_dtypes
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import tensor
  from tensorflow.python.framework import test_util
  from tensorflow.python.framework import weak_tensor
  from tensorflow.python.ops import weak_tensor_ops
  from tensorflow.python.ops import weak_tensor_test_util
  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.ops.numpy_ops import np_random
  from tensorflow.python.platform import googletest
label_desc: Use image node_id 4 for calling the MathTest obj's underlying member method code with example usage: obj.testExp() without return types