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diff --git a/node_modules/phantomjs-prebuilt/node_modules/request/lib/helpers.js b/node_modules/phantomjs-prebuilt/node_modules/request/lib/helpers.js
new file mode 100644
index 000000000..f9d727e38
--- /dev/null
+++ b/node_modules/phantomjs-prebuilt/node_modules/request/lib/helpers.js
@@ -0,0 +1,65 @@
+'use strict'
+
+var jsonSafeStringify = require('json-stringify-safe')
+  , crypto = require('crypto')
+
+var defer = typeof setImmediate === 'undefined'
+  ? process.nextTick
+  : setImmediate
+
+function paramsHaveRequestBody(params) {
+  return (
+    params.body ||
+    params.requestBodyStream ||
+    (params.json && typeof params.json !== 'boolean') ||
+    params.multipart
+  )
+}
+
+function safeStringify (obj, replacer) {
+  var ret
+  try {
+    ret = JSON.stringify(obj, replacer)
+  } catch (e) {
+    ret = jsonSafeStringify(obj, replacer)
+  }
+  return ret
+}
+
+function md5 (str) {
+  return crypto.createHash('md5').update(str).digest('hex')
+}
+
+function isReadStream (rs) {
+  return rs.readable && rs.path && rs.mode
+}
+
+function toBase64 (str) {
+  return (new Buffer(str || '', 'utf8')).toString('base64')
+}
+
+function copy (obj) {
+  var o = {}
+  Object.keys(obj).forEach(function (i) {
+    o[i] = obj[i]
+  })
+  return o
+}
+
+function version () {
+  var numbers = process.version.replace('v', '').split('.')
+  return {
+    major: parseInt(numbers[0], 10),
+    minor: parseInt(numbers[1], 10),
+    patch: parseInt(numbers[2], 10)
+  }
+}
+
+exports.paramsHaveRequestBody = paramsHaveRequestBody
+exports.safeStringify         = safeStringify
+exports.md5                   = md5
+exports.isReadStream          = isReadStream
+exports.toBase64              = toBase64
+exports.copy                  = copy
+exports.version               = version
+exports.defer                 = defer