What problem are you facing?

When casting the type of Collection<Document> to an interface made by me, I noticed that the Collection methods still allow me to set properties that do not exist in the Document type. This is due to a bug in mongodb.d.ts line 3713 where it says

```ts
export declare type MatchKeysAndValues<TSchema> = Readonly<Partial<TSchema>> & Record<string, any>;
```

Where it should say

```ts
export declare type MatchKeysAndValues<TSchema> = Readonly<Partial<TSchema>>;
```

Unfortunately this file is not on github for some reason, which doesn't allow me to open a PR to fix it.

What driver and relevant dependency versions are you using?

mongodb v4.1.0

Steps to reproduce?

```ts

interface MyDocument

db.collection<MyDocument>("test").insertOne({foo: "value", bar: 0, foobar: "other value"}) //This syntax is completely valid despite "foobar" not existing in the MyDocument interface

```