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diff --git a/node_modules/grunt-legacy-util/node_modules/lodash/_Stack.js b/node_modules/grunt-legacy-util/node_modules/lodash/_Stack.js
new file mode 100644
index 000000000..7c3c2f318
--- /dev/null
+++ b/node_modules/grunt-legacy-util/node_modules/lodash/_Stack.js
@@ -0,0 +1,31 @@
+var stackClear = require('./_stackClear'),
+    stackDelete = require('./_stackDelete'),
+    stackGet = require('./_stackGet'),
+    stackHas = require('./_stackHas'),
+    stackSet = require('./_stackSet');
+
+/**
+ * Creates a stack cache object to store key-value pairs.
+ *
+ * @private
+ * @param {Array} [values] The values to cache.
+ */
+function Stack(values) {
+  var index = -1,
+      length = values ? values.length : 0;
+
+  this.clear();
+  while (++index < length) {
+    var entry = values[index];
+    this.set(entry[0], entry[1]);
+  }
+}
+
+// Add functions to the `Stack` cache.
+Stack.prototype.clear = stackClear;
+Stack.prototype['delete'] = stackDelete;
+Stack.prototype.get = stackGet;
+Stack.prototype.has = stackHas;
+Stack.prototype.set = stackSet;
+
+module.exports = Stack;