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diff --git a/src/http/static/viz/1/goog/string/typedstring.js b/src/http/static/viz/1/goog/string/typedstring.js
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+// Copyright 2013 The Closure Library Authors. All Rights Reserved.
+//
+// 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.
+
+goog.provide('goog.string.TypedString');
+
+
+
+/**
+ * Wrapper for strings that conform to a data type or language.
+ *
+ * Implementations of this interface are wrappers for strings, and typically
+ * associate a type contract with the wrapped string.  Concrete implementations
+ * of this interface may choose to implement additional run-time type checking,
+ * see for example {@code goog.html.SafeHtml}. If available, client code that
+ * needs to ensure type membership of an object should use the type's function
+ * to assert type membership, such as {@code goog.html.SafeHtml.unwrap}.
+ * @interface
+ */
+goog.string.TypedString = function() {};
+
+
+/**
+ * Interface marker of the TypedString interface.
+ *
+ * This property can be used to determine at runtime whether or not an object
+ * implements this interface.  All implementations of this interface set this
+ * property to {@code true}.
+ * @type {boolean}
+ */
+goog.string.TypedString.prototype.implementsGoogStringTypedString;
+
+
+/**
+ * Retrieves this wrapped string's value.
+ * @return {!string} The wrapped string's value.
+ */
+goog.string.TypedString.prototype.getTypedStringValue;