src/vs/workbench/contrib/terminal/common/remoteTerminalChannel.ts/RemoteTerminalChannelClient/onDidRequestDetach
class RemoteTerminalChannelClient:	get onDidRequestDetach(): Event<{ requestId: number; workspaceId: string; instanceId: number }> {
		return this._channel.listen<{ requestId: number; workspaceId: string; instanceId: number }>('$onDidRequestDetach');
	}