setLocalDescription requires the description argument when it should not.

[jcc10]

TypeScript Version: 4.2.0-dev.20201211

Search Terms: setLocalDescription, LocalDescription

Code

export async function test() {
    const pc = new RTCPeerConnection();
    await pc.setLocalDescription();
}

Expected behavior:
No Errors.

Actual behavior:

npx tsc test.ts
test.ts:3:14 - error TS2554: Expected 1 arguments, but got 0.

3     await pc.setLocalDescription();
               ~~~~~~~~~~~~~~~~~~~~~

  ../emsdk/node/12.18.1_64bit/lib/node_modules/typescript/lib/lib.dom.d.ts:12238:25
    12238     setLocalDescription(description: RTCSessionDescriptionInit): Promise<void>;
                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    An argument for 'description' was not provided.


Found 1 error.
**

Playground Link: https://www.typescriptlang.org/play?#code/KYDwDg9gTgLgBAQwO4IJbwGYFcB2BjGVCHOGYAZxgAoBKOAbwCg4W49jK4w84BeOHMCRwASgBUAwgAVgwKBOKCCRHLQDczVsjTxuAOnLAYAGQh4EAGwAiFPFFRhCxdYwC+QA

Related Issues: No.

Spec: https://w3c.github.io/webrtc-pc/#dom-peerconnection-setlocaldescription (Paragraph 3)

I already have a fork that has the lib patched I am unsure if there is any other code that would have to be patched.

[IllusionMH]

Looks like error in actual behavior section is not what you want to show for method signature.

To fix error from actual behavior you should use export​ ​async​ ​function​ ​test​(​)​

[jcc10]

@IllusionMH Thank you, I have no idea how I missed that.