src/vs/workbench/contrib/terminal/common/remoteTerminalChannel.ts/RemoteTerminalChannelClient/onProcessShellTypeChanged
class RemoteTerminalChannelClient:	get onProcessShellTypeChanged(): Event<{ id: number, event: TerminalShellType | undefined }> {
		return this._channel.listen<{ id: number, event: TerminalShellType | undefined }>('$onProcessShellTypeChangedEvent');
	}