import * as vscode from 'vscode';
export declare class Node {
    label: string;
    darkIcon: vscode.Uri | undefined;
    lightIcon: vscode.Uri | undefined;
    children: Node[] | undefined;
    contextValue: string | undefined;
    value: any | undefined;
    constructor(label: string, darkIcon?: vscode.Uri | undefined, lightIcon?: vscode.Uri | undefined, children?: Node[] | undefined, contextValue?: string | undefined, value?: any | undefined);
    serialize(): any;
}
export declare class Panel implements vscode.TreeDataProvider<Node> {
    readonly name: string;
    rootItems: Node[];
    private placeholder;
    private _onDidChangeTreeData;
    readonly onDidChangeTreeData: vscode.Event<void | Node | null | undefined> | undefined;
    set placeholderMessage(value: string);
    constructor(name: string, rootItems: Node[], placeholderMessage: string);
    UpdatePanel(): void;
    getTreeItem(node: Node): vscode.TreeItem | Thenable<vscode.TreeItem>;
    getChildren(node?: Node): Node[];
}