Bolton DP is not running on Tensorflow 1.14.0

Runing this :
https://github.com/tensorflow/privacy/blob/master/tutorials/bolton_tutorial.py

Traceback (most recent call last):
File "/Users/shachatt1/Desktop/sharmi/books/My_book_responsible_ai/python_code/chapter4/privacy-master/tutorials/bolton_tutorial.py", line 18, in
from tensorflow_privacy.privacy.bolt_on import losses # pylint: disable=wrong-import-position
File "/opt/miniconda3/lib/python3.7/site-packages/tensorflow_privacy/init.py", line 30, in
from tensorflow_privacy import v1
File "/opt/miniconda3/lib/python3.7/site-packages/tensorflow_privacy/v1/init.py", line 32, in
from tensorflow_privacy.privacy.estimators.v1.dnn import DNNClassifier as DNNClassifierV1
File "/opt/miniconda3/lib/python3.7/site-packages/tensorflow_privacy/privacy/estimators/v1/dnn.py", line 19, in
from tensorflow_privacy.privacy.estimators.v1 import head as head_lib
File "/opt/miniconda3/lib/python3.7/site-packages/tensorflow_privacy/privacy/estimators/v1/head.py", line 23, in
from tensorflow_estimator.python.estimator import model_fn
File "/opt/miniconda3/lib/python3.7/site-packages/tensorflow_estimator/init.py", line 10, in
from tensorflow_estimator._api.v1 import estimator
File "/opt/miniconda3/lib/python3.7/site-packages/tensorflow_estimator/_api/v1/estimator/init.py", line 10, in
from tensorflow_estimator._api.v1.estimator import experimental
File "/opt/miniconda3/lib/python3.7/site-packages/tensorflow_estimator/_api/v1/estimator/experimental/init.py", line 10, in
from tensorflow_estimator.python.estimator.canned.dnn import dnn_logit_fn_builder
File "/opt/miniconda3/lib/python3.7/site-packages/tensorflow_estimator/python/estimator/canned/dnn.py", line 23, in
from tensorflow.python.feature_column import dense_features
ImportError: cannot import name 'dense_features' from 'tensorflow.python.feature_column' (/opt/miniconda3/lib/python3.7/site-packages/tensorflow/python/feature_column/init.py)

Start with tutorials/bolton_tutorial.py and reproduce the import failure using TensorFlow 1.14.0. Trace the imports through tensorflow_privacy/v1 and tensorflow_estimator, especially the missing dense_features symbol. Done means the Bolton tutorial starts successfully without this ImportError under the reported environment.