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-rw-r--r--tensorflow/contrib/timeseries/python/timeseries/state_management.py1
1 files changed, 1 insertions, 0 deletions
diff --git a/tensorflow/contrib/timeseries/python/timeseries/state_management.py b/tensorflow/contrib/timeseries/python/timeseries/state_management.py
index 13eecd4d82..138406c616 100644
--- a/tensorflow/contrib/timeseries/python/timeseries/state_management.py
+++ b/tensorflow/contrib/timeseries/python/timeseries/state_management.py
@@ -149,6 +149,7 @@ class ChainingStateManager(_OverridableStateManager):
key_dtype=dtypes.int64,
default_values=self._start_state,
empty_key=-1,
+ deleted_key=-2,
name="cached_states",
checkpoint=self._checkpoint_state)