diff --git a/src/factory.ts b/src/factory.ts
index 37d6896..150dad2 100644
--- a/src/factory.ts
+++ b/src/factory.ts
@@ -1,5 +1,5 @@
 import { Pass } from "./pass";
-import { Certificates, isValid } from "./schema";
+import { Certificates, isValid, FactoryOptions, PartitionedBundle, BundleUnit, FinalCertificates } from "./schema";
 
 import { promisify } from "util";
 import { readFile as _readFile, readdir as _readdir } from "fs";
diff --git a/src/pass.ts b/src/pass.ts
index 0e4dbe2..a8515fb 100644
--- a/src/pass.ts
+++ b/src/pass.ts
@@ -1,6 +1,4 @@
-import fs from "fs";
 import path from "path";
-import { promisify } from "util";
 import stream, { Stream } from "stream";
 import forge from "node-forge";
 import archiver from "archiver";
@@ -11,15 +9,12 @@ import formatMessage from "./messages";
 import FieldsArray from "./fieldsArray";
 import {
 	assignLength, generateStringFile,
-	removeHidden, dateToW3CString,
-	isValidRGB
+	dateToW3CString, isValidRGB
 } from "./utils";
 
 const barcodeDebug = debug("passkit:barcode");
 const genericDebug = debug("passkit:generic");
 
-const readdir = promisify(fs.readdir);
-const readFile = promisify(fs.readFile);
 
 const noop = () => {};
 const transitType = Symbol("transitType");