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diff --git a/examples/ex6_complex_type_conversion/src/main/java/com/google/android/mobly/snippet/example6/ExampleSnippet.java b/examples/ex6_complex_type_conversion/src/main/java/com/google/android/mobly/snippet/example6/ExampleSnippet.java
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+++ b/examples/ex6_complex_type_conversion/src/main/java/com/google/android/mobly/snippet/example6/ExampleSnippet.java
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+/*
+ * Copyright (C) 2017 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.mobly.snippet.example6;
+
+import com.google.android.mobly.snippet.Snippet;
+import com.google.android.mobly.snippet.rpc.Rpc;
+import com.google.android.mobly.snippet.util.Log;
+
+import java.util.ArrayList;
+
+/**
+ * Example snippet showing converting complex type objects using custom logic.
+ *
+ * For complex types in Java, one can supply a custom object converter to Snippet Lib to specify how
+ * each complex type should be serialized/de-serialized. With this, users don't have to explicitly
+ * call a serializer or de-serializer in every single Rpc method, which simplifies code.
+ */
+public class ExampleSnippet implements Snippet {
+    @Rpc(description = "Pass a complex type as a snippet parameter.")
+    public String passComplexTypeToSnippet(CustomType input) {
+        Log.i("Old value is: " + input.getMyValue());
+        return "The value in CustomType is: " + input.getMyValue();
+    }
+
+    @Rpc(description = "Returns a complex type from snippet.")
+    public CustomType returnComplexTypeFromSnippet(String value) {
+        return new CustomType(value);
+    }
+
+    /**
+     * Demonstrates serialization/de-serialization of a collection of custom type objects.
+     */
+    @Rpc(description = "Update values for multiple CustomType objects.")
+    public ArrayList<CustomType> updateValues(ArrayList<CustomType> objects, String newValue) {
+        for (CustomType obj : objects) {
+            obj.setMyValue(newValue);
+        }
+        return objects;
+    }
+
+    @Override
+    public void shutdown() {}
+}