/**
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
 */
import { VtsSafeAny } from '@ui-vts-kit/ng-vts/core/types';
import { VtsTreeNode } from './vts-tree-base-node';
import { VtsTreeBaseService } from './vts-tree-base.service';
export declare class VtsTreeBase {
    vtsTreeService: VtsTreeBaseService;
    constructor(vtsTreeService: VtsTreeBaseService);
    /**
     * Coerces a value({@link any[]}) to a TreeNodes({@link VtsTreeNode[]})
     */
    coerceTreeNodes(value: VtsSafeAny[]): VtsTreeNode[];
    /**
     * Get all nodes({@link VtsTreeNode})
     */
    getTreeNodes(): VtsTreeNode[];
    /**
     * Get {@link VtsTreeNode} with key
     */
    getTreeNodeByKey(key: string): VtsTreeNode | null;
    /**
     * Get checked nodes(merged)
     */
    getCheckedNodeList(): VtsTreeNode[];
    /**
     * Get selected nodes
     */
    getSelectedNodeList(): VtsTreeNode[];
    /**
     * Get half checked nodes
     */
    getHalfCheckedNodeList(): VtsTreeNode[];
    /**
     * Get expanded nodes
     */
    getExpandedNodeList(): VtsTreeNode[];
    /**
     * Get matched nodes(if vtsSearchValue is not null)
     */
    getMatchedNodeList(): VtsTreeNode[];
}