import * as i0 from '@angular/core';
import { OnInit, OnChanges, AfterViewInit, TemplateRef, EventEmitter, SimpleChanges } from '@angular/core';
import { Direction } from '@angular/cdk/bidi';
import { CdkVirtualScrollViewport } from '@angular/cdk/scrolling';
import { ControlValueAccessor } from '@angular/forms';
import { Observable, Subject } from 'rxjs';
import { NzConfigKey, NzConfigService } from 'ng-zorro-antd/core/config';
import { NzNoAnimationDirective } from 'ng-zorro-antd/core/no-animation';
import { NzTreeBase, NzTreeNode, NzTreeNodeOptions, NzFormatBeforeDropEvent, NzTreeNodeKey, NzFormatEmitEvent, NzTreeBaseService } from 'ng-zorro-antd/core/tree';
export { NzFormatBeforeDropEvent, NzFormatEmitEvent, NzTreeNode, NzTreeNodeOptions } from 'ng-zorro-antd/core/tree';
import { NzSafeAny, NgStyleInterface } from 'ng-zorro-antd/core/types';

/**
 * 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
 */

declare function NzTreeServiceFactory(): NzTreeBaseService;
declare class NzTreeComponent extends NzTreeBase implements OnInit, ControlValueAccessor, OnChanges, AfterViewInit {
    readonly _nzModuleName: NzConfigKey;
    noAnimation: NzNoAnimationDirective | null;
    nzConfigService: NzConfigService;
    private cdr;
    private directionality;
    private destroyRef;
    nzShowIcon: boolean;
    nzHideUnMatched: boolean;
    nzBlockNode: boolean;
    nzExpandAll: boolean;
    nzSelectMode: boolean;
    nzCheckStrictly: boolean;
    nzShowExpand: boolean;
    nzShowLine: boolean;
    nzCheckable: boolean;
    nzAsyncData: boolean;
    nzDraggable: boolean;
    nzMultiple: boolean;
    nzExpandedIcon?: TemplateRef<{
        $implicit: NzTreeNode;
        origin: NzTreeNodeOptions;
    }>;
    nzVirtualItemSize: number;
    nzVirtualMaxBufferPx: number;
    nzVirtualMinBufferPx: number;
    nzVirtualHeight: string | null;
    nzTreeTemplate?: TemplateRef<{
        $implicit: NzTreeNode;
        origin: NzTreeNodeOptions;
    }>;
    nzBeforeDrop?: (confirm: NzFormatBeforeDropEvent) => Observable<boolean>;
    nzData: NzTreeNodeOptions[] | NzTreeNode[];
    nzExpandedKeys: NzTreeNodeKey[];
    nzSelectedKeys: NzTreeNodeKey[];
    nzCheckedKeys: NzTreeNodeKey[];
    nzSearchValue: string;
    nzSearchFunc?: (node: NzTreeNodeOptions) => boolean;
    nzTreeTemplateChild: TemplateRef<{
        $implicit: NzTreeNode;
        origin: NzTreeNodeOptions;
    }>;
    cdkVirtualScrollViewport: CdkVirtualScrollViewport;
    nzFlattenNodes: NzTreeNode[];
    beforeInit: boolean;
    dir: Direction;
    readonly nzExpandedKeysChange: EventEmitter<string[]>;
    readonly nzSelectedKeysChange: EventEmitter<string[]>;
    readonly nzCheckedKeysChange: EventEmitter<NzTreeNodeKey[]>;
    readonly nzSearchValueChange: EventEmitter<NzFormatEmitEvent>;
    readonly nzClick: EventEmitter<NzFormatEmitEvent>;
    readonly nzDblClick: EventEmitter<NzFormatEmitEvent>;
    readonly nzContextMenu: EventEmitter<NzFormatEmitEvent>;
    readonly nzCheckboxChange: EventEmitter<NzFormatEmitEvent>;
    readonly nzExpandChange: EventEmitter<NzFormatEmitEvent>;
    readonly nzOnDragStart: EventEmitter<NzFormatEmitEvent>;
    readonly nzOnDragEnter: EventEmitter<NzFormatEmitEvent>;
    readonly nzOnDragOver: EventEmitter<NzFormatEmitEvent>;
    readonly nzOnDragLeave: EventEmitter<NzFormatEmitEvent>;
    readonly nzOnDrop: EventEmitter<NzFormatEmitEvent>;
    readonly nzOnDragEnd: EventEmitter<NzFormatEmitEvent>;
    HIDDEN_STYLE: {
        width: number;
        height: number;
        display: string;
        overflow: string;
        opacity: number;
        border: number;
        padding: number;
        margin: number;
    };
    HIDDEN_NODE_STYLE: {
        position: string;
        pointerEvents: string;
        visibility: string;
        height: number;
        overflow: string;
    };
    onChange: (value: NzTreeNode[]) => void;
    onTouched: () => void;
    writeValue(value: NzTreeNode[]): void;
    registerOnChange(fn: (_: NzTreeNode[]) => void): void;
    registerOnTouched(fn: () => void): void;
    /**
     * Render all properties of nzTree
     *
     * @param changes all changes from @Input
     */
    renderTreeProperties(changes: SimpleChanges): void;
    trackByFlattenNode(_: number, node: NzTreeNode): string;
    /**
     * nzData
     *
     * @param value
     */
    handleNzData(value: NzSafeAny[]): void;
    handleFlattenNodes(data: NzTreeNode[], expandKeys?: NzTreeNodeKey[] | true): void;
    handleCheckedKeys(keys: NzTreeNodeKey[] | null): void;
    handleExpandedKeys(keys?: NzTreeNodeKey[] | true): void;
    handleSelectedKeys(keys: NzTreeNodeKey[], isMulti: boolean): void;
    handleSearchValue(value: string, searchFunc?: (node: NzTreeNodeOptions) => boolean): void;
    /**
     * Handle emit event
     *
     * @param event
     * handle each event
     */
    eventTriggerChanged(event: NzFormatEmitEvent): void;
    /**
     * Click expand icon
     */
    renderTree(): void;
    constructor();
    ngOnInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    ngAfterViewInit(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<NzTreeComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<NzTreeComponent, "nz-tree", ["nzTree"], { "nzShowIcon": { "alias": "nzShowIcon"; "required": false; }; "nzHideUnMatched": { "alias": "nzHideUnMatched"; "required": false; }; "nzBlockNode": { "alias": "nzBlockNode"; "required": false; }; "nzExpandAll": { "alias": "nzExpandAll"; "required": false; }; "nzSelectMode": { "alias": "nzSelectMode"; "required": false; }; "nzCheckStrictly": { "alias": "nzCheckStrictly"; "required": false; }; "nzShowExpand": { "alias": "nzShowExpand"; "required": false; }; "nzShowLine": { "alias": "nzShowLine"; "required": false; }; "nzCheckable": { "alias": "nzCheckable"; "required": false; }; "nzAsyncData": { "alias": "nzAsyncData"; "required": false; }; "nzDraggable": { "alias": "nzDraggable"; "required": false; }; "nzMultiple": { "alias": "nzMultiple"; "required": false; }; "nzExpandedIcon": { "alias": "nzExpandedIcon"; "required": false; }; "nzVirtualItemSize": { "alias": "nzVirtualItemSize"; "required": false; }; "nzVirtualMaxBufferPx": { "alias": "nzVirtualMaxBufferPx"; "required": false; }; "nzVirtualMinBufferPx": { "alias": "nzVirtualMinBufferPx"; "required": false; }; "nzVirtualHeight": { "alias": "nzVirtualHeight"; "required": false; }; "nzTreeTemplate": { "alias": "nzTreeTemplate"; "required": false; }; "nzBeforeDrop": { "alias": "nzBeforeDrop"; "required": false; }; "nzData": { "alias": "nzData"; "required": false; }; "nzExpandedKeys": { "alias": "nzExpandedKeys"; "required": false; }; "nzSelectedKeys": { "alias": "nzSelectedKeys"; "required": false; }; "nzCheckedKeys": { "alias": "nzCheckedKeys"; "required": false; }; "nzSearchValue": { "alias": "nzSearchValue"; "required": false; }; "nzSearchFunc": { "alias": "nzSearchFunc"; "required": false; }; }, { "nzExpandedKeysChange": "nzExpandedKeysChange"; "nzSelectedKeysChange": "nzSelectedKeysChange"; "nzCheckedKeysChange": "nzCheckedKeysChange"; "nzSearchValueChange": "nzSearchValueChange"; "nzClick": "nzClick"; "nzDblClick": "nzDblClick"; "nzContextMenu": "nzContextMenu"; "nzCheckboxChange": "nzCheckboxChange"; "nzExpandChange": "nzExpandChange"; "nzOnDragStart": "nzOnDragStart"; "nzOnDragEnter": "nzOnDragEnter"; "nzOnDragOver": "nzOnDragOver"; "nzOnDragLeave": "nzOnDragLeave"; "nzOnDrop": "nzOnDrop"; "nzOnDragEnd": "nzOnDragEnd"; }, ["nzTreeTemplateChild"], never, true, never>;
    static ngAcceptInputType_nzShowIcon: unknown;
    static ngAcceptInputType_nzHideUnMatched: unknown;
    static ngAcceptInputType_nzBlockNode: unknown;
    static ngAcceptInputType_nzExpandAll: unknown;
    static ngAcceptInputType_nzSelectMode: unknown;
    static ngAcceptInputType_nzCheckStrictly: unknown;
    static ngAcceptInputType_nzShowExpand: unknown;
    static ngAcceptInputType_nzShowLine: unknown;
    static ngAcceptInputType_nzCheckable: unknown;
    static ngAcceptInputType_nzAsyncData: unknown;
    static ngAcceptInputType_nzDraggable: unknown;
    static ngAcceptInputType_nzMultiple: unknown;
}

/**
 * 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
 */

declare class NzTreeNodeBuiltinComponent implements OnInit, OnChanges {
    noAnimation: NzNoAnimationDirective | null;
    nzTreeService: NzTreeBaseService;
    private ngZone;
    private renderer;
    private el;
    private cdr;
    private destroyRef;
    icon: string;
    title: string;
    isLoading: boolean;
    isSelected: boolean;
    isDisabled: boolean;
    isMatched: boolean;
    isExpanded: boolean;
    isLeaf: boolean;
    isChecked?: boolean;
    isHalfChecked?: boolean;
    isDisableCheckbox?: boolean;
    isSelectable?: boolean;
    canHide?: boolean;
    isStart: boolean[];
    isEnd: boolean[];
    nzTreeNode: NzTreeNode;
    nzShowLine?: boolean;
    nzShowExpand?: boolean;
    nzCheckable?: boolean;
    nzAsyncData?: boolean;
    nzHideUnMatched: boolean;
    nzNoAnimation: boolean;
    nzSelectMode: boolean;
    nzShowIcon: boolean;
    nzExpandedIcon?: TemplateRef<{
        $implicit: NzTreeNode;
        origin: NzTreeNodeOptions;
    }>;
    nzTreeTemplate: TemplateRef<{
        $implicit: NzTreeNode;
        origin: NzTreeNodeOptions;
    }> | null;
    nzBeforeDrop?: (confirm: NzFormatBeforeDropEvent) => Observable<boolean>;
    nzSearchValue: string;
    nzDraggable: boolean;
    readonly nzClick: EventEmitter<NzFormatEmitEvent>;
    readonly nzDblClick: EventEmitter<NzFormatEmitEvent>;
    readonly nzContextMenu: EventEmitter<NzFormatEmitEvent>;
    readonly nzCheckboxChange: EventEmitter<NzFormatEmitEvent>;
    readonly nzExpandChange: EventEmitter<NzFormatEmitEvent>;
    readonly nzOnDragStart: EventEmitter<NzFormatEmitEvent>;
    readonly nzOnDragEnter: EventEmitter<NzFormatEmitEvent>;
    readonly nzOnDragOver: EventEmitter<NzFormatEmitEvent>;
    readonly nzOnDragLeave: EventEmitter<NzFormatEmitEvent>;
    readonly nzOnDrop: EventEmitter<NzFormatEmitEvent>;
    readonly nzOnDragEnd: EventEmitter<NzFormatEmitEvent>;
    /**
     * drag var
     */
    destroy$: Subject<void>;
    dragPos: number;
    dragPosClass: Record<string, string>;
    draggingKey: string | null;
    showIndicator: boolean;
    /**
     * default set
     */
    get displayStyle(): string;
    get isSwitcherOpen(): boolean;
    get isSwitcherClose(): boolean;
    /**
     * collapse node
     *
     * @param event
     */
    clickExpand(event: MouseEvent): void;
    clickSelect(event: MouseEvent): void;
    dblClick(event: MouseEvent): void;
    contextMenu(event: MouseEvent): void;
    /**
     * check node
     *
     * @param event
     */
    clickCheckbox(event: MouseEvent): void;
    clearDragClass(): void;
    /**
     * drag event
     *
     * @param e
     */
    handleDragStart(e: DragEvent): void;
    handleDragEnter(e: DragEvent): void;
    handleDragOver(e: DragEvent): void;
    handleDragLeave(e: DragEvent): void;
    handleDragDrop(e: DragEvent): void;
    handleDragEnd(e: DragEvent): void;
    /**
     * Listening to dragging events.
     */
    handDragEvent(): void;
    markForCheck(): void;
    constructor();
    ngOnInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    private renderIndicator;
    static ɵfac: i0.ɵɵFactoryDeclaration<NzTreeNodeBuiltinComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<NzTreeNodeBuiltinComponent, "nz-tree-node[builtin]", ["nzTreeBuiltinNode"], { "icon": { "alias": "icon"; "required": false; }; "title": { "alias": "title"; "required": false; }; "isLoading": { "alias": "isLoading"; "required": false; }; "isSelected": { "alias": "isSelected"; "required": false; }; "isDisabled": { "alias": "isDisabled"; "required": false; }; "isMatched": { "alias": "isMatched"; "required": false; }; "isExpanded": { "alias": "isExpanded"; "required": false; }; "isLeaf": { "alias": "isLeaf"; "required": false; }; "isChecked": { "alias": "isChecked"; "required": false; }; "isHalfChecked": { "alias": "isHalfChecked"; "required": false; }; "isDisableCheckbox": { "alias": "isDisableCheckbox"; "required": false; }; "isSelectable": { "alias": "isSelectable"; "required": false; }; "canHide": { "alias": "canHide"; "required": false; }; "isStart": { "alias": "isStart"; "required": false; }; "isEnd": { "alias": "isEnd"; "required": false; }; "nzTreeNode": { "alias": "nzTreeNode"; "required": false; }; "nzShowLine": { "alias": "nzShowLine"; "required": false; }; "nzShowExpand": { "alias": "nzShowExpand"; "required": false; }; "nzCheckable": { "alias": "nzCheckable"; "required": false; }; "nzAsyncData": { "alias": "nzAsyncData"; "required": false; }; "nzHideUnMatched": { "alias": "nzHideUnMatched"; "required": false; }; "nzNoAnimation": { "alias": "nzNoAnimation"; "required": false; }; "nzSelectMode": { "alias": "nzSelectMode"; "required": false; }; "nzShowIcon": { "alias": "nzShowIcon"; "required": false; }; "nzExpandedIcon": { "alias": "nzExpandedIcon"; "required": false; }; "nzTreeTemplate": { "alias": "nzTreeTemplate"; "required": false; }; "nzBeforeDrop": { "alias": "nzBeforeDrop"; "required": false; }; "nzSearchValue": { "alias": "nzSearchValue"; "required": false; }; "nzDraggable": { "alias": "nzDraggable"; "required": false; }; }, { "nzClick": "nzClick"; "nzDblClick": "nzDblClick"; "nzContextMenu": "nzContextMenu"; "nzCheckboxChange": "nzCheckboxChange"; "nzExpandChange": "nzExpandChange"; "nzOnDragStart": "nzOnDragStart"; "nzOnDragEnter": "nzOnDragEnter"; "nzOnDragOver": "nzOnDragOver"; "nzOnDragLeave": "nzOnDragLeave"; "nzOnDrop": "nzOnDrop"; "nzOnDragEnd": "nzOnDragEnd"; }, never, never, true, never>;
    static ngAcceptInputType_isLoading: unknown;
    static ngAcceptInputType_isSelected: unknown;
    static ngAcceptInputType_isDisabled: unknown;
    static ngAcceptInputType_isMatched: unknown;
    static ngAcceptInputType_isExpanded: unknown;
    static ngAcceptInputType_isLeaf: unknown;
    static ngAcceptInputType_isChecked: unknown;
    static ngAcceptInputType_isHalfChecked: unknown;
    static ngAcceptInputType_isDisableCheckbox: unknown;
    static ngAcceptInputType_isSelectable: unknown;
    static ngAcceptInputType_canHide: unknown;
    static ngAcceptInputType_nzShowLine: unknown;
    static ngAcceptInputType_nzShowExpand: unknown;
    static ngAcceptInputType_nzCheckable: unknown;
    static ngAcceptInputType_nzAsyncData: unknown;
    static ngAcceptInputType_nzHideUnMatched: unknown;
    static ngAcceptInputType_nzNoAnimation: unknown;
    static ngAcceptInputType_nzSelectMode: unknown;
    static ngAcceptInputType_nzShowIcon: unknown;
    static ngAcceptInputType_nzDraggable: unknown;
}

/**
 * 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
 */

declare class NzTreeIndentComponent implements OnChanges {
    nzTreeLevel: number;
    nzIsStart: boolean[];
    nzIsEnd: boolean[];
    nzSelectMode: boolean;
    listOfUnit: number[];
    ngOnChanges(changes: SimpleChanges): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<NzTreeIndentComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<NzTreeIndentComponent, "nz-tree-indent", ["nzTreeIndent"], { "nzTreeLevel": { "alias": "nzTreeLevel"; "required": false; }; "nzIsStart": { "alias": "nzIsStart"; "required": false; }; "nzIsEnd": { "alias": "nzIsEnd"; "required": false; }; "nzSelectMode": { "alias": "nzSelectMode"; "required": false; }; }, {}, never, never, true, never>;
}

/**
 * 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
 */

declare class NzTreeNodeSwitcherComponent {
    nzShowExpand?: boolean;
    nzShowLine?: boolean;
    nzExpandedIcon?: TemplateRef<{
        $implicit: NzTreeNode;
        origin: NzTreeNodeOptions;
    }>;
    nzSelectMode: boolean;
    context: NzTreeNode;
    isLeaf?: boolean;
    isLoading?: boolean;
    isExpanded?: boolean;
    get isShowLineIcon(): boolean;
    get isShowSwitchIcon(): boolean;
    get isSwitcherOpen(): boolean;
    get isSwitcherClose(): boolean;
    static ɵfac: i0.ɵɵFactoryDeclaration<NzTreeNodeSwitcherComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<NzTreeNodeSwitcherComponent, "nz-tree-node-switcher", never, { "nzShowExpand": { "alias": "nzShowExpand"; "required": false; }; "nzShowLine": { "alias": "nzShowLine"; "required": false; }; "nzExpandedIcon": { "alias": "nzExpandedIcon"; "required": false; }; "nzSelectMode": { "alias": "nzSelectMode"; "required": false; }; "context": { "alias": "context"; "required": false; }; "isLeaf": { "alias": "isLeaf"; "required": false; }; "isLoading": { "alias": "isLoading"; "required": false; }; "isExpanded": { "alias": "isExpanded"; "required": false; }; }, {}, never, never, true, never>;
    static ngAcceptInputType_nzShowExpand: unknown;
    static ngAcceptInputType_nzShowLine: unknown;
    static ngAcceptInputType_isLeaf: unknown;
    static ngAcceptInputType_isLoading: unknown;
    static ngAcceptInputType_isExpanded: unknown;
}

declare class NzTreeNodeBuiltinCheckboxComponent {
    nzSelectMode: boolean;
    isChecked?: boolean;
    isHalfChecked?: boolean;
    isDisabled?: boolean;
    isDisableCheckbox?: boolean;
    static ɵfac: i0.ɵɵFactoryDeclaration<NzTreeNodeBuiltinCheckboxComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<NzTreeNodeBuiltinCheckboxComponent, "nz-tree-node-checkbox[builtin]", never, { "nzSelectMode": { "alias": "nzSelectMode"; "required": false; }; "isChecked": { "alias": "isChecked"; "required": false; }; "isHalfChecked": { "alias": "isHalfChecked"; "required": false; }; "isDisabled": { "alias": "isDisabled"; "required": false; }; "isDisableCheckbox": { "alias": "isDisableCheckbox"; "required": false; }; }, {}, never, never, true, never>;
    static ngAcceptInputType_isChecked: unknown;
    static ngAcceptInputType_isHalfChecked: unknown;
    static ngAcceptInputType_isDisabled: unknown;
    static ngAcceptInputType_isDisableCheckbox: unknown;
}

declare class NzTreeNodeTitleComponent implements OnChanges {
    private cdr;
    searchValue: string;
    treeTemplate: TemplateRef<{
        $implicit: NzTreeNode;
        origin: NzTreeNodeOptions;
    }> | null;
    draggable: boolean;
    showIcon: boolean;
    selectMode: boolean;
    context: NzTreeNode;
    icon: string;
    title: string;
    isLoading: boolean;
    isSelected: boolean;
    isDisabled: boolean;
    isMatched: boolean;
    isExpanded: boolean;
    isLeaf: boolean;
    showIndicator: boolean;
    dragPosition?: number;
    get canDraggable(): boolean | null;
    get matchedValue(): string;
    get isSwitcherOpen(): boolean;
    get isSwitcherClose(): boolean;
    ngOnChanges(changes: SimpleChanges): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<NzTreeNodeTitleComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<NzTreeNodeTitleComponent, "nz-tree-node-title", never, { "searchValue": { "alias": "searchValue"; "required": false; }; "treeTemplate": { "alias": "treeTemplate"; "required": false; }; "draggable": { "alias": "draggable"; "required": false; }; "showIcon": { "alias": "showIcon"; "required": false; }; "selectMode": { "alias": "selectMode"; "required": false; }; "context": { "alias": "context"; "required": false; }; "icon": { "alias": "icon"; "required": false; }; "title": { "alias": "title"; "required": false; }; "isLoading": { "alias": "isLoading"; "required": false; }; "isSelected": { "alias": "isSelected"; "required": false; }; "isDisabled": { "alias": "isDisabled"; "required": false; }; "isMatched": { "alias": "isMatched"; "required": false; }; "isExpanded": { "alias": "isExpanded"; "required": false; }; "isLeaf": { "alias": "isLeaf"; "required": false; }; "showIndicator": { "alias": "showIndicator"; "required": false; }; "dragPosition": { "alias": "dragPosition"; "required": false; }; }, {}, never, never, true, never>;
    static ngAcceptInputType_draggable: unknown;
    static ngAcceptInputType_showIcon: unknown;
    static ngAcceptInputType_isLoading: unknown;
    static ngAcceptInputType_isSelected: unknown;
    static ngAcceptInputType_isDisabled: unknown;
    static ngAcceptInputType_isMatched: unknown;
    static ngAcceptInputType_isExpanded: unknown;
    static ngAcceptInputType_isLeaf: unknown;
}

/**
 * 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
 */

declare class NzTreeDropIndicatorComponent implements OnChanges {
    dropPosition?: number;
    level: number;
    direction: Direction;
    style: NgStyleInterface;
    private cdr;
    ngOnChanges(): void;
    renderIndicator(dropPosition: number, direction?: Direction): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<NzTreeDropIndicatorComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<NzTreeDropIndicatorComponent, "nz-tree-drop-indicator", ["nzTreeDropIndicator"], { "dropPosition": { "alias": "dropPosition"; "required": false; }; "level": { "alias": "level"; "required": false; }; "direction": { "alias": "direction"; "required": false; }; }, {}, never, never, true, never>;
    static ngAcceptInputType_level: unknown;
}

declare class NzTreeModule {
    static ɵfac: i0.ɵɵFactoryDeclaration<NzTreeModule, never>;
    static ɵmod: i0.ɵɵNgModuleDeclaration<NzTreeModule, never, [typeof NzTreeComponent, typeof NzTreeNodeBuiltinComponent, typeof NzTreeIndentComponent, typeof NzTreeNodeSwitcherComponent, typeof NzTreeNodeBuiltinCheckboxComponent, typeof NzTreeNodeTitleComponent, typeof NzTreeDropIndicatorComponent], [typeof NzTreeComponent, typeof NzTreeNodeBuiltinComponent, typeof NzTreeIndentComponent]>;
    static ɵinj: i0.ɵɵInjectorDeclaration<NzTreeModule>;
}

declare class NzTreeService extends NzTreeBaseService {
    static ɵfac: i0.ɵɵFactoryDeclaration<NzTreeService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<NzTreeService>;
}

export { NzTreeComponent, NzTreeIndentComponent, NzTreeModule, NzTreeNodeBuiltinCheckboxComponent, NzTreeNodeBuiltinComponent, NzTreeNodeSwitcherComponent, NzTreeNodeTitleComponent, NzTreeService, NzTreeServiceFactory };