Fix to add clustering_callbacks.py to the pip package and the api

The RELEASE.md was updated accordingly.

Author: benkli01

RELEASE.md

@@ -30,6 +30,14 @@ Keras pruning API:
 * Tested against TensorFlow 1.14.0, 2.0.0, and nightly, and Python 3.
 
 
+# TensorFlow Model Optimization next release TBD
+
+Keras clustering API:
+
+* Added *ClusteringSummaries* to create additional output for the clustering
+progress for TensorBoard.
+* Tested against TensorFlow 1.14.0, 2.0.0, and nightly, and Python 3.
+
 # TensorFlow Model Optimization 0.5.0
 
 TFMOT 0.5.0 adds some additional features for Quantization Aware Training. QAT

tensorflow_model_optimization/python/core/api/clustering/keras/__init__.py

@@ -21,4 +21,5 @@
 from tensorflow_model_optimization.python.core.clustering.keras.cluster import strip_clustering
 
 from tensorflow_model_optimization.python.core.clustering.keras.cluster_config import CentroidInitialization
+from tensorflow_model_optimization.python.core.clustering.keras.clustering_callbacks import ClusteringSummaries
 # pylint: enable=g-bad-import-order

tensorflow_model_optimization/python/core/clustering/keras/BUILD

@@ -12,6 +12,7 @@ py_library(
     srcs_version = "PY3",
     deps = [
         ":cluster",
+        ":clustering_callbacks",
         "//tensorflow_model_optimization/python/core/clustering/keras/experimental",
     ],
 )