@@ -1,51 +1,10 @@
 // @ts-check
 /// <reference path="types-dnscontrol.d.ts" />
 
-// Helpers
-
-/**
- * @param {object} record
- * @param {string[]} [record.alpn]
- * @param {string[]} [record.ipv4hint]
- * @param {string[]} [record.ipv6hint]
- */
-function https(record) {
-  return Object.keys(record)
-    .map(function (key) {
-      return [key, record[key].join(',')].join('=')
-    })
-    .join(' ')
-}
+// Use of `require` confuses TypeScript, use `require_glob` instead
 
-/**
- * @param {string} target
- */
-function ensureAbsolute(target) {
-  return target.endsWith('.') ? target : target + '.'
-}
-
-/**
- * @param {string} target
- * @param {string} prefix
- */
-function prefix(target, prefix) {
-  return target === '@'
-    ? prefix
-    : prefix + '.' + target
-
-}
-
-/**
- * @param {string} name
- * @param {string} acmeTarget
- */
-function acmeDelegate(name, acmeTarget) {
-  return CNAME(
-    name === '@' ? '_acme-challenge' : '_acme-challenge.' + name,
-    ensureAbsolute(acmeTarget),
-    TTL('15m'),
-  )
-}
+/// <reference path="helpers.js" />
+require_glob("./helpers.js")
 
 /**
  * @param {string} name
@@ -75,37 +34,6 @@ )
   }
 
   return records
-}
-
-/**
- * @param {string} domain
- * @param {string} verification
- * @param {string[]} [extras]
- */
-function iCloudMail(domain, verification, extras) {
-  if (extras == null) {
-    extras = []
-  }
-  return [
-    MX('@', 10, 'mx01.mail.icloud.com.'),
-    MX('@', 10, 'mx02.mail.icloud.com.'),
-    TXT('@', 'apple-domain=' + verification),
-    SPF_BUILDER({
-      parts: ['v=spf1'].concat(extras).concat('include:icloud.com', '-all'),
-    }),
-    CNAME('sig1._domainkey', 'sig1.dkim.' + domain + '.at.icloudmailadmin.com.'),
-  ]
-}
-
-/**
- * @param {string[]} sources
- * @param {string} target
- * @param {RecordModifier[]} [recordModifiers]
- */
-function bulkCNAME(sources, target, recordModifiers) {
-  return sources.map(function (source) {
-    return CNAME.bind(CNAME, source, target).apply(CNAME, recordModifiers)
-  })
 }
 
 var nameservers = [

@@ -0,0 +1,79 @@
+// @ts-check
+/// <reference path="types-dnscontrol.d.ts" />
+
+// Helpers
+
+/**
+ * @param {object} record
+ * @param {string[]} [record.alpn]
+ * @param {string[]} [record.ipv4hint]
+ * @param {string[]} [record.ipv6hint]
+ */
+function https(record) {
+  return Object.keys(record)
+    .map(function (key) {
+      return [key, record[key].join(',')].join('=')
+    })
+    .join(' ')
+}
+
+/**
+ * @param {string} target
+ */
+function ensureAbsolute(target) {
+  return target.endsWith('.') ? target : target + '.'
+}
+
+/**
+ * @param {string} target
+ * @param {string} prefix
+ */
+function prefix(target, prefix) {
+  return target === '@'
+    ? prefix
+    : prefix + '.' + target
+
+}
+
+/**
+ * @param {string} name
+ * @param {string} acmeTarget
+ */
+function acmeDelegate(name, acmeTarget) {
+  return CNAME(
+    name === '@' ? '_acme-challenge' : '_acme-challenge.' + name,
+    ensureAbsolute(acmeTarget),
+    TTL('15m'),
+  )
+}
+
+/**
+ * @param {string[]} sources
+ * @param {string} target
+ * @param {RecordModifier[]} [recordModifiers]
+ */
+function bulkCNAME(sources, target, recordModifiers) {
+  return sources.map(function (source) {
+    return CNAME.bind(CNAME, source, target).apply(CNAME, recordModifiers)
+  })
+}
+
+/**
+ * @param {string} domain
+ * @param {string} verification
+ * @param {string[]} [extras]
+ */
+function iCloudMail(domain, verification, extras) {
+  if (extras == null) {
+    extras = []
+  }
+  return [
+    MX('@', 10, 'mx01.mail.icloud.com.'),
+    MX('@', 10, 'mx02.mail.icloud.com.'),
+    TXT('@', 'apple-domain=' + verification),
+    SPF_BUILDER({
+      parts: ['v=spf1'].concat(extras).concat('include:icloud.com', '-all'),
+    }),
+    CNAME('sig1._domainkey', 'sig1.dkim.' + domain + '.at.icloudmailadmin.com.'),
+  ]
+}