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diff --git a/contexts/data/lib/closure-library/closure/goog/structs/.svn/text-base/node.js.svn-base b/contexts/data/lib/closure-library/closure/goog/structs/.svn/text-base/node.js.svn-base
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+// Copyright 2006 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.
+
+/**
+ * @fileoverview Generic immutable node object to be used in collections.
+ *
+ */
+
+
+goog.provide('goog.structs.Node');
+
+
+
+/**
+ * A generic immutable node. This can be used in various collections that
+ * require a node object for its item (such as a heap).
+ * @param {*} key Key.
+ * @param {*} value Vaue.
+ * @constructor
+ */
+goog.structs.Node = function(key, value) {
+  /**
+   * The key.
+   * @type {*}
+   * @private
+   */
+  this.key_ = key;
+
+  /**
+   * The value.
+   * @type {*}
+   * @private
+   */
+  this.value_ = value;
+};
+
+
+/**
+ * Gets the key.
+ * @return {*} The key.
+ */
+goog.structs.Node.prototype.getKey = function() {
+  return this.key_;
+};
+
+
+/**
+ * Gets the value.
+ * @return {*} The value.
+ */
+goog.structs.Node.prototype.getValue = function() {
+  return this.value_;
+};
+
+
+/**
+ * Clones a node and returns a new node.
+ * @return {goog.structs.Node} A new goog.structs.Node with the same key value
+ *     pair.
+ */
+goog.structs.Node.prototype.clone = function() {
+  return new goog.structs.Node(this.key_, this.value_);
+};