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diff --git a/node_modules/stylus/lib/nodes/if.js b/node_modules/stylus/lib/nodes/if.js
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+++ b/node_modules/stylus/lib/nodes/if.js
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+
+/*!
+ * Stylus - If
+ * Copyright (c) Automattic <developer.wordpress.com>
+ * MIT Licensed
+ */
+
+/**
+ * Module dependencies.
+ */
+
+var Node = require('./node');
+
+/**
+ * Initialize a new `If` with the given `cond`.
+ *
+ * @param {Expression} cond
+ * @param {Boolean|Block} negate, block
+ * @api public
+ */
+
+var If = module.exports = function If(cond, negate){
+  Node.call(this);
+  this.cond = cond;
+  this.elses = [];
+  if (negate && negate.nodeName) {
+    this.block = negate;
+  } else {
+    this.negate = negate;
+  }
+};
+
+/**
+ * Inherit from `Node.prototype`.
+ */
+
+If.prototype.__proto__ = Node.prototype;
+
+/**
+ * Return a clone of this node.
+ * 
+ * @return {Node}
+ * @api public
+ */
+
+If.prototype.clone = function(parent){
+  var clone = new If();
+  clone.cond = this.cond.clone(parent, clone);
+  clone.block = this.block.clone(parent, clone);
+  clone.elses = this.elses.map(function(node){ return node.clone(parent, clone); });
+  clone.negate = this.negate;
+  clone.postfix = this.postfix;
+  clone.lineno = this.lineno;
+  clone.column = this.column;
+  clone.filename = this.filename;
+  return clone;
+};
+
+/**
+ * Return a JSON representation of this node.
+ *
+ * @return {Object}
+ * @api public
+ */
+
+If.prototype.toJSON = function(){
+  return {
+    __type: 'If',
+    cond: this.cond,
+    block: this.block,
+    elses: this.elses,
+    negate: this.negate,
+    postfix: this.postfix,
+    lineno: this.lineno,
+    column: this.column,
+    filename: this.filename
+  };
+};