From d0d2b288ed9518abc2256dadc0ab3f39c0340add Mon Sep 17 00:00:00 2001
From: Daniel Diaz <39510674+IslandRhythms@users.noreply.github.com>
Date: Thu, 25 Jan 2024 11:46:13 -0500
Subject: [PATCH 1/3] add type for createCollections

---
 test/types/connection.test.ts | 2 ++
 types/connection.d.ts         | 5 +++++
 2 files changed, 7 insertions(+)

diff --git a/test/types/connection.test.ts b/test/types/connection.test.ts
index 01e42bec123..4518101c44e 100644
--- a/test/types/connection.test.ts
+++ b/test/types/connection.test.ts
@@ -20,6 +20,8 @@ conn.readyState === 99;
 
 expectError(conn.readyState = 0);
 
+expectError(conn.createCollections());
+
 expectType<Connection>(new Connection());
 expectType<Promise<Connection>>(new Connection().asPromise());
 
diff --git a/types/connection.d.ts b/types/connection.d.ts
index a4f0f23eb8f..1fb7ba7aa9c 100644
--- a/types/connection.d.ts
+++ b/types/connection.d.ts
@@ -81,6 +81,11 @@ declare module 'mongoose' {
      */
     createCollection<T extends AnyObject = AnyObject>(name: string, options?: mongodb.CreateCollectionOptions): Promise<mongodb.Collection<T>>;
 
+    /**
+     * https://mongoosejs.com/docs/api/connection.html#Connection.prototype.createCollections()
+     */
+    createCollections<T extends AnyObject = AnyObject>(continueOnError?: boolean): Promise<mongodb.Collection<T>>;
+
     /**
      * Removes the model named `name` from this connection, if it exists. You can
      * use this function to clean up any models you created in your tests to

From 122734693cbbd2125d58125d03da8b1342441e99 Mon Sep 17 00:00:00 2001
From: Daniel Diaz <39510674+IslandRhythms@users.noreply.github.com>
Date: Thu, 25 Jan 2024 14:58:46 -0500
Subject: [PATCH 2/3] remove test

---
 test/types/connection.test.ts | 1 -
 1 file changed, 1 deletion(-)

diff --git a/test/types/connection.test.ts b/test/types/connection.test.ts
index 4518101c44e..3686e19d0c3 100644
--- a/test/types/connection.test.ts
+++ b/test/types/connection.test.ts
@@ -20,7 +20,6 @@ conn.readyState === 99;
 
 expectError(conn.readyState = 0);
 
-expectError(conn.createCollections());
 
 expectType<Connection>(new Connection());
 expectType<Promise<Connection>>(new Connection().asPromise());

From 56f0515a83e4edb966e626df03e3b4b7b6251e90 Mon Sep 17 00:00:00 2001
From: Valeri Karpov <val@karpov.io>
Date: Thu, 25 Jan 2024 15:18:54 -0500
Subject: [PATCH 3/3] types: correct type defs for createCollections()

---
 test/types/connection.test.ts | 3 +++
 types/connection.d.ts         | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/test/types/connection.test.ts b/test/types/connection.test.ts
index 3686e19d0c3..93c3fc6c0d8 100644
--- a/test/types/connection.test.ts
+++ b/test/types/connection.test.ts
@@ -20,6 +20,9 @@ conn.readyState === 99;
 
 expectError(conn.readyState = 0);
 
+expectType<Promise<Record<string, Error | mongodb.Collection<any>>>>(
+  conn.createCollections()
+);
 
 expectType<Connection>(new Connection());
 expectType<Promise<Connection>>(new Connection().asPromise());
diff --git a/types/connection.d.ts b/types/connection.d.ts
index 1fb7ba7aa9c..35714b13c8d 100644
--- a/types/connection.d.ts
+++ b/types/connection.d.ts
@@ -84,7 +84,7 @@ declare module 'mongoose' {
     /**
      * https://mongoosejs.com/docs/api/connection.html#Connection.prototype.createCollections()
      */
-    createCollections<T extends AnyObject = AnyObject>(continueOnError?: boolean): Promise<mongodb.Collection<T>>;
+    createCollections(continueOnError?: boolean): Promise<Record<string, Error | mongodb.Collection<any>>>;
 
     /**
      * Removes the model named `name` from this connection, if it exists. You can