diff --git a/README.md b/README.md
index a5d7f28..5b717d5 100644
--- a/README.md
+++ b/README.md
@@ -52,7 +52,7 @@ The process should look like this:
 
 # How to get credentials.json?
 
-1.  Follow the instructions to [Create a client ID and client secret](https://developers.google.com/adwords/api/docs/guides/authentication#create_a_client_id_and_client_secret). Make sure to select `Desktop app` for the application type.
+1.  Follow the instructions to [Create a client ID and client secret](https://developers.google.com/identity/gsi/web/guides/get-google-api-clientid). Make sure to select `Desktop app` for the application type.
 2.  Once done, go to [https://console.cloud.google.com/apis/credentials?project=(project-name)&folder&organizationId](<https://console.cloud.google.com/apis/credentials?project=(project-name)&folder&organizationId>) and download the OAuth2 credentials file, as shown in the image below. Make sure to replace `(project-name)` with your project name.
 
     <p align="center">
diff --git a/gmail-tester.d.ts b/gmail-tester.d.ts
index 25324f0..475d810 100644
--- a/gmail-tester.d.ts
+++ b/gmail-tester.d.ts
@@ -38,6 +38,8 @@ declare module "gmail-tester" {
     subject?: string;
     before?: Date;
     after?: Date;
+    label?: string;
+    include_attachments?: boolean;
   }
 
   export interface Credentials {