Incorrect TypeScript type definitions for Channel.lastMessage

[josh-]

Hi team,

I noticed that the type definition for Channel.lastMessage seems to be incorrect.

Here's a snippet from node_modules/stream-chat/dist/types/channel.d.ts (version 8.10.1):

    /**
     * lastMessage - return the last message, takes into account that last few messages might not be perfectly sorted
     *
     * @return {ReturnType<ChannelState<StreamChatGenerics>['formatMessage']> | undefined} Description
     */
    lastMessage(): FormatMessageResponse<StreamChatGenerics>;

(note that the return type is FormatMessageResponse<StreamChatGenerics> whereas it should be FormatMessageResponse<StreamChatGenerics> | undefined – as the JSDoc @returns statement correctly specifies).