diff --git a/src/node/types/CliArgv.ts b/src/node/types/CliArgv.ts
new file mode 100644
index 000000000..1c7f373b8
--- /dev/null
+++ b/src/node/types/CliArgv.ts
@@ -0,0 +1,6 @@
+export type CliArgv = {
+    settings?: string;
+  credentials?: string;
+  sessionkey?: string;
+  apikey?: string;
+}
diff --git a/src/node/types/PadDiffLineOps.ts b/src/node/types/PadDiffLineOps.ts
new file mode 100644
index 000000000..9b1c4eb5d
--- /dev/null
+++ b/src/node/types/PadDiffLineOps.ts
@@ -0,0 +1,5 @@
+export type PadDiffLineOps = {
+    next: ()=>PadDiffLineOps,
+    done: boolean,
+    value: PadDiffLineOps
+}
diff --git a/src/node/types/PadRevision.ts b/src/node/types/PadRevision.ts
new file mode 100644
index 000000000..800d89bfd
--- /dev/null
+++ b/src/node/types/PadRevision.ts
@@ -0,0 +1,6 @@
+export type PadRevision = {
+    changeset: string
+    meta:{
+        author: string
+    }
+}
diff --git a/src/node/utils/Cli.js b/src/node/utils/Cli.ts
similarity index 80%
rename from src/node/utils/Cli.js
rename to src/node/utils/Cli.ts
index 1579dd3ce..dc63ecad7 100644
--- a/src/node/utils/Cli.js
+++ b/src/node/utils/Cli.ts
@@ -21,33 +21,35 @@
  */
 
 // An object containing the parsed command-line options
-exports.argv = {};
+import type {CliArgv} from "../types/CliArgv";
 
-const argv = process.argv.slice(2);
+export const argv:CliArgv = {};
+
+const argvIn = process.argv.slice(2);
 let arg, prevArg;
 
 // Loop through args
-for (let i = 0; i < argv.length; i++) {
-  arg = argv[i];
+for (let i = 0; i < argvIn.length; i++) {
+  arg = argvIn[i];
 
   // Override location of settings.json file
   if (prevArg === '--settings' || prevArg === '-s') {
-    exports.argv.settings = arg;
+    argv.settings = arg;
   }
 
   // Override location of credentials.json file
   if (prevArg === '--credentials') {
-    exports.argv.credentials = arg;
+    argv.credentials = arg;
   }
 
   // Override location of settings.json file
   if (prevArg === '--sessionkey') {
-    exports.argv.sessionkey = arg;
+    argv.sessionkey = arg;
   }
 
   // Override location of APIKEY.txt file
   if (prevArg === '--apikey') {
-    exports.argv.apikey = arg;
+    argv.apikey = arg;
   }
 
   prevArg = arg;