Please make sure that this is a bug. As per our GitHub Policy, we only address code/doc bugs, performance issues, feature requests and build/installation issues on GitHub. tag:bug_template

System information

• Have I written custom code (as opposed to using a stock example script provided in TensorFlow): No
• OS Platform and Distribution (e.g., Linux Ubuntu 16.04): Windows 10
• Mobile device (e.g. iPhone 8, Pixel 2, Samsung Galaxy) if the issue happens on mobile device: N/A
• TensorFlow installed from (source or binary): binary
• TensorFlow version (use command below): v1.15.0-92-g5d80e1e8e6 1.15.2
• Python version: 3.7.4
• Bazel version (if compiling from source): N/A
• GCC/Compiler version (if compiling from source): N/A
• CUDA/cuDNN version: N/A
• GPU model and memory: N/A

You can collect some of this information using our environment capture
script
You can also obtain the TensorFlow version with: 1. TF 1.0: python -c "import tensorflow as tf; print(tf.GIT_VERSION, tf.VERSION)" 2. TF 2.0: python -c "import tensorflow as tf; print(tf.version.GIT_VERSION, tf.version.VERSION)"

Describe the current behavior
Many modules are simply missing from tensorflow.contrib.boosted_trees, including estimator_batch and lib

>>> import tensorflow.contrib.boosted_trees.estimator_batch
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'tensorflow.contrib.boosted_trees.estimator_batch'

Describe the expected behavior
import tensorflow.contrib.boosted_trees.estimator_batch should succeed.

Code to reproduce the issue
import tensorflow.contrib.boosted_trees.estimator_batch

Other info / logs
Looks like a regression since 1.15.0