diff --git a/native/jni/src/dictionary.cpp b/native/jni/src/dictionary.cpp
index ee55cfa..8c785a2 100644
--- a/native/jni/src/dictionary.cpp
+++ b/native/jni/src/dictionary.cpp
@@ -56,16 +56,17 @@
     delete mGestureDecoder;
 }
 
-int Dictionary::getSuggestions(ProximityInfo *proximityInfo, int *xcoordinates, int *ycoordinates,
-        int *times, int *pointerIds, int *codes, int codesSize, int *prevWordChars,
+int Dictionary::getSuggestions(ProximityInfo *proximityInfo, void *traverseSession,
+        int *xcoordinates, int *ycoordinates, int *times, int *pointerIds,
+        int *codes, int codesSize, int *prevWordChars,
         int prevWordLength, int commitPoint, bool isGesture,
         bool useFullEditDistance, unsigned short *outWords,
         int *frequencies, int *spaceIndices, int *outputTypes) {
     int result = 0;
     if (isGesture) {
         mGestureDecoder->setPrevWord(prevWordChars, prevWordLength);
-        result = mGestureDecoder->getSuggestions(proximityInfo, xcoordinates, ycoordinates,
-                times, pointerIds, codes, codesSize, commitPoint,
+        result = mGestureDecoder->getSuggestions(proximityInfo, traverseSession,
+                xcoordinates, ycoordinates, times, pointerIds, codes, codesSize, commitPoint,
                 outWords, frequencies, spaceIndices, outputTypes);
         if (DEBUG_DICT) {
             DUMP_RESULT(outWords, frequencies, 18 /* MAX_WORDS */, MAX_WORD_LENGTH_INTERNAL);
diff --git a/native/jni/src/dictionary.h b/native/jni/src/dictionary.h
index ab238c8..2c79527 100644
--- a/native/jni/src/dictionary.h
+++ b/native/jni/src/dictionary.h
@@ -44,9 +44,9 @@
     Dictionary(void *dict, int dictSize, int mmapFd, int dictBufAdjust, int typedLetterMultipler,
             int fullWordMultiplier, int maxWordLength, int maxWords, int maxPredictions);
 
-    int getSuggestions(ProximityInfo *proximityInfo, int *xcoordinates, int *ycoordinates,
-            int *times, int *pointerIds, int *codes, int codesSize, int *prevWordChars,
-            int prevWordLength, int commitPoint, bool isGesture,
+    int getSuggestions(ProximityInfo *proximityInfo, void *traverseSession, int *xcoordinates,
+            int *ycoordinates, int *times, int *pointerIds, int *codes, int codesSize,
+            int *prevWordChars, int prevWordLength, int commitPoint, bool isGesture,
             bool useFullEditDistance, unsigned short *outWords,
             int *frequencies, int *spaceIndices, int *outputTypes);
 
diff --git a/native/jni/src/gesture/gesture_decoder_wrapper.h b/native/jni/src/gesture/gesture_decoder_wrapper.h
index 03c84b5..b70c8e0 100644
--- a/native/jni/src/gesture/gesture_decoder_wrapper.h
+++ b/native/jni/src/gesture/gesture_decoder_wrapper.h
@@ -37,15 +37,15 @@
         delete mIncrementalDecoderInterface;
     }
 
-    int getSuggestions(ProximityInfo *pInfo, int *inputXs, int *inputYs, int *times,
-            int *pointerIds, int *codes, int inputSize, int commitPoint,
+    int getSuggestions(ProximityInfo *pInfo, void *traverseSession, int *inputXs, int *inputYs,
+            int *times, int *pointerIds, int *codes, int inputSize, int commitPoint,
             unsigned short *outWords, int *frequencies, int *outputIndices, int *outputTypes) {
         if (!mIncrementalDecoderInterface) {
             return 0;
         }
         return mIncrementalDecoderInterface->getSuggestions(
-                pInfo, inputXs, inputYs, times, pointerIds, codes, inputSize, commitPoint,
-                outWords, frequencies, outputIndices, outputTypes);
+                pInfo, traverseSession, inputXs, inputYs, times, pointerIds, codes,
+                inputSize, commitPoint, outWords, frequencies, outputIndices, outputTypes);
     }
 
     void reset() {
diff --git a/native/jni/src/gesture/incremental_decoder_interface.h b/native/jni/src/gesture/incremental_decoder_interface.h
index 6d2e273..e8d3a53 100644
--- a/native/jni/src/gesture/incremental_decoder_interface.h
+++ b/native/jni/src/gesture/incremental_decoder_interface.h
@@ -28,9 +28,10 @@
 
 class IncrementalDecoderInterface {
  public:
-    virtual int getSuggestions(ProximityInfo *pInfo, int *inputXs, int *inputYs, int *times,
-            int *pointerIds, int *codes, int inputSize, int commitPoint,
-            unsigned short *outWords, int *frequencies, int *outputIndices, int *outputTypes) = 0;
+    virtual int getSuggestions(ProximityInfo *pInfo, void *traverseSession,
+            int *inputXs, int *inputYs, int *times, int *pointerIds, int *codes,
+            int inputSize, int commitPoint, unsigned short *outWords, int *frequencies,
+            int *outputIndices, int *outputTypes) = 0;
     virtual void reset() = 0;
     virtual void setDict(const UnigramDictionary *dict, const BigramDictionary *bigram,
             const uint8_t *dictRoot, int rootPos) = 0;
diff --git a/native/jni/src/gesture/incremental_decoder_wrapper.h b/native/jni/src/gesture/incremental_decoder_wrapper.h
index 6980615..8d66b4e 100644
--- a/native/jni/src/gesture/incremental_decoder_wrapper.h
+++ b/native/jni/src/gesture/incremental_decoder_wrapper.h
@@ -37,15 +37,15 @@
         delete mIncrementalDecoderInterface;
     }
 
-    int getSuggestions(ProximityInfo *pInfo, int *inputXs, int *inputYs, int *times,
-            int *pointerIds, int *codes, int inputSize, int commitPoint,
+    int getSuggestions(ProximityInfo *pInfo, void *traverseSession, int *inputXs, int *inputYs,
+            int *times, int *pointerIds, int *codes, int inputSize, int commitPoint,
             unsigned short *outWords, int *frequencies, int *outputIndices, int *outputTypes) {
         if (!mIncrementalDecoderInterface) {
             return 0;
         }
         return mIncrementalDecoderInterface->getSuggestions(
-                pInfo, inputXs, inputYs, times, pointerIds, codes, inputSize, commitPoint,
-                outWords, frequencies, outputIndices, outputTypes);
+                pInfo, traverseSession, inputXs, inputYs, times, pointerIds, codes,
+                inputSize, commitPoint, outWords, frequencies, outputIndices, outputTypes);
     }
 
     void reset() {