🤖 Merge PR DefinitelyTyped#73915 feat(google-apps-script): add subject option to Gmail draft reply methods by @domdomegg

Co-authored-by: Claude <noreply@anthropic.com>

Author: domdomegg

types/google-apps-script/google-apps-script.gmail.d.ts

@@ -183,6 +183,15 @@ declare namespace GoogleAppsScript {
              */
             replyTo?: string | undefined;
         }
+        /**
+         * Options for a Gmail draft reply.
+         */
+        interface GmailReplyOptions extends GmailAdvancedOptions {
+            /**
+             * The subject line for the reply draft (up to 250 characters).
+             */
+            subject?: string | undefined;
+        }
         /** alias to GmailAdvancedOptions */
         type GmailDraftOptions = GmailAdvancedOptions;
         /**
@@ -220,9 +229,9 @@ declare namespace GoogleAppsScript {
          */
         interface GmailMessage {
             createDraftReply(body: string): GmailDraft;
-            createDraftReply(body: string, options: GmailAdvancedOptions): GmailDraft;
+            createDraftReply(body: string, options: GmailReplyOptions): GmailDraft;
             createDraftReplyAll(body: string): GmailDraft;
-            createDraftReplyAll(body: string, options: GmailAdvancedOptions): GmailDraft;
+            createDraftReplyAll(body: string, options: GmailReplyOptions): GmailDraft;
             forward(recipient: string): GmailMessage;
             forward(recipient: string, options: GmailAdvancedOptions): GmailMessage;
             getAttachments(): GmailAttachment[];
@@ -264,9 +273,9 @@ declare namespace GoogleAppsScript {
         interface GmailThread {
             addLabel(label: GmailLabel): GmailThread;
             createDraftReply(body: string): GmailDraft;
-            createDraftReply(body: string, options: GmailAdvancedOptions): GmailDraft;
+            createDraftReply(body: string, options: GmailReplyOptions): GmailDraft;
             createDraftReplyAll(body: string): GmailDraft;
-            createDraftReplyAll(body: string, options: GmailAdvancedOptions): GmailDraft;
+            createDraftReplyAll(body: string, options: GmailReplyOptions): GmailDraft;
             getFirstMessageSubject(): string;
             getId(): string;
             getLabels(): GmailLabel[];

types/google-apps-script/test/google-apps-script-tests.ts

@@ -1536,3 +1536,50 @@ function optionalFields() {
         console.log("Found an element");
     }
 }
+
+// GmailMessage.createDraftReply and createDraftReplyAll with subject option
+function testGmailDraftReplyWithSubject() {
+    const message = GmailApp.getMessageById("message-id");
+    const thread = GmailApp.getThreadById("thread-id");
+
+    // Test GmailMessage.createDraftReply with subject option
+    message.createDraftReply("Reply body"); // $ExpectType GmailDraft
+    message.createDraftReply("Reply body", { subject: "Custom subject" }); // $ExpectType GmailDraft
+    // $ExpectType GmailDraft
+    message.createDraftReply("Reply body", {
+        subject: "Custom subject",
+        cc: "cc@example.com",
+        bcc: "bcc@example.com",
+        htmlBody: "<p>HTML reply</p>",
+    });
+
+    // Test GmailMessage.createDraftReplyAll with subject option
+    message.createDraftReplyAll("Reply all body"); // $ExpectType GmailDraft
+    message.createDraftReplyAll("Reply all body", { subject: "Custom subject for all" }); // $ExpectType GmailDraft
+    // $ExpectType GmailDraft
+    message.createDraftReplyAll("Reply all body", {
+        subject: "Custom subject for all",
+        cc: "cc@example.com",
+        htmlBody: "<p>HTML reply all</p>",
+    });
+
+    // Test GmailThread.createDraftReply with subject option
+    thread.createDraftReply("Thread reply body"); // $ExpectType GmailDraft
+    thread.createDraftReply("Thread reply body", { subject: "Thread custom subject" }); // $ExpectType GmailDraft
+    // $ExpectType GmailDraft
+    thread.createDraftReply("Thread reply body", {
+        subject: "Thread custom subject",
+        from: "from@example.com",
+        name: "Custom Name",
+    });
+
+    // Test GmailThread.createDraftReplyAll with subject option
+    thread.createDraftReplyAll("Thread reply all body"); // $ExpectType GmailDraft
+    thread.createDraftReplyAll("Thread reply all body", { subject: "Thread custom subject for all" }); // $ExpectType GmailDraft
+    // $ExpectType GmailDraft
+    thread.createDraftReplyAll("Thread reply all body", {
+        subject: "Thread custom subject for all",
+        replyTo: "replyto@example.com",
+        attachments: [DriveApp.getFileById("file-id").getBlob()],
+    });
+}