Function pinMessage

pinMessage(
    client: ITelegramClient,
    params: InputMessageId & {
        bothSides?: boolean;
        notify?: boolean;
        shouldDispatch?: true;
    },
): Promise<Message | null>
Pin a message in a group, supergroup, channel or PM.

For supergroups/channels, you must have appropriate permissions, either as an admin, or as default permissions
Parameters
- client: ITelegramClient
- params: InputMessageId & {
      bothSides?: boolean;
      notify?: boolean;
      shouldDispatch?: true;
  }
  - OptionalbothSides?: boolean
    Whether to pin for both sides (only for private chats)
  - Optionalnotify?: boolean
    Whether to send a notification (only for legacy groups and supergroups)
  - OptionalshouldDispatch?: true
    Whether to dispatch the returned service message (if any) to the client's update handler.
Returns Promise<Message | null>
Service message about pinned message, if one was generated.
- Defined in packages/core/src/highlevel/methods/messages/pin-message.ts:16