src/vs/workbench/contrib/editSessions/browser/editSessionsViews.ts/EditSessionDataViewDataProvider/getChildren
class EditSessionDataViewDataProvider:	async getChildren(element?: ITreeItem): Promise<ITreeItem[]> {
		if (!element) {
			return this.getAllEditSessions();
		}

		const [ref, folderName, filePath] = URI.parse(element.handle).path.substring(1).split('/');

		if (ref && !folderName) {
			return this.getEditSession(ref);
		} else if (ref && folderName && !filePath) {
			return this.getEditSessionFolderContents(ref, folderName);
		}

		return [];
	}