import type { TreeExpandedKeys, TreeNodeData } from '@primereact/types/headless/tree';
import * as React from 'react';
export declare const useTree: (inProps?: unknown) => import("@primereact/types/core").HeadlessInstance<import("@primereact/types/headless/tree").UseTreeProps, unknown, {
    state: {
        expandedKeys: TreeExpandedKeys | undefined;
        selectionKeys: import("@primereact/types/headless/tree").TreeSelectionKeys | import("@primereact/types/headless/tree").TreeCheckboxSelectionKeys | undefined;
        focusedKey: string | null;
        dragHover: boolean;
    };
    nodeMap: Map<string, import("@primereact/types/headless/tree").TreeNodeEntry>;
    flatOrder: string[];
    visibleKeys: string[];
    visibleCount: number;
    findNodeByKey: (key: string) => TreeNodeData | undefined;
    findNodeInfo: (key: string) => {
        level: number;
        posInSet: number;
        setSize: number;
        parentKey: string | null;
    };
    getNodes: () => TreeNodeData[];
    setFocusedKey: (key: string | null) => void;
    setSelectionKeys: (keys: import("@primereact/types/headless/tree").TreeSelectionKeys | import("@primereact/types/headless/tree").TreeCheckboxSelectionKeys, event?: React.SyntheticEvent) => void;
    onKeyDown: (event: React.KeyboardEvent, node: TreeNodeData, _level: number, expanded: boolean, leaf: boolean) => void;
    onNodeToggle: (event: React.SyntheticEvent, node: TreeNodeData) => void;
    onNodeClick: (event: React.MouseEvent | React.KeyboardEvent, node: TreeNodeData, nodeTouched?: boolean) => void;
    onClick: (event: React.MouseEvent | React.KeyboardEvent, node: TreeNodeData, nodeTouched?: boolean) => void;
    onCheckboxChange: (event: React.SyntheticEvent, node: TreeNodeData) => void;
    isNodeSelected: (node: TreeNodeData) => boolean;
    selection: {
        isSelected: (key: string) => boolean;
        isPartiallySelected: (key: string) => boolean;
        isAllSelected: () => boolean;
        isSomeSelected: () => boolean;
        toggleSelection: (event: React.SyntheticEvent, key: string, mode: "checkbox" | "radio" | "single") => void;
        toggleAll: (event: React.SyntheticEvent) => void;
    };
    onFilterKeyUp: (event: React.KeyboardEvent) => void;
    onDragOver: (event: React.DragEvent) => void;
    onDragEnter: () => void;
    onDragLeave: (event: React.DragEvent) => void;
    onDrop: (event: React.DragEvent) => void;
    allowDrop: (dropNode?: TreeNodeData) => boolean;
    rootProps: {
        onDragOver: (event: React.DragEvent) => void;
        onDragEnter: () => void;
        onDragLeave: (event: React.DragEvent) => void;
        onDrop: (event: React.DragEvent) => void;
        'data-dragover'?: "" | undefined;
        id: string | undefined;
        'data-scope': "tree";
        'data-part': "root";
    };
    getToggleProps: (node: TreeNodeData) => {
        [x: string]: string | -1 | ((event: React.MouseEvent<HTMLButtonElement>) => void);
        'data-scope': "tree";
        'data-part': "toggle";
        type: "button";
        tabIndex: -1;
        onClick: (event: React.MouseEvent<HTMLButtonElement>) => void;
    };
    getToggleSpacerProps: () => {
        'data-scope': "tree";
        'data-part': "toggle-spacer";
        'aria-hidden': true;
    };
    getToggleIndicatorProps: () => {
        'data-scope': "tree";
        'data-part': "toggle-indicator";
        'aria-hidden': true;
    };
    getNodeProps: (node: TreeNodeData, level: number, expanded: boolean, checked: boolean, selected: boolean, leaf: boolean, posInSet: number, setSize: number) => {
        onKeyDown: (event: React.KeyboardEvent) => void;
        'data-focused'?: "" | undefined;
        'data-disabled'?: "" | undefined;
        'data-leaf'?: "" | undefined;
        'data-selected'?: "" | undefined;
        role: "treeitem";
        tabIndex: number;
        'aria-level': number;
        'aria-setsize': number;
        'aria-posinset': number;
        'aria-expanded': boolean | undefined;
        'aria-selected': boolean | undefined;
        'aria-checked': boolean | undefined;
        'data-scope': "tree";
        'data-part': "node";
        'data-node-key': string;
    };
    filterProps: {
        'data-scope': "tree";
        'data-part': "filter";
        autoComplete: "off";
        onKeyUp: (event: React.KeyboardEvent) => void;
    };
    loadingProps: {
        'data-scope': "tree";
        'data-part': "loading";
        role: "status";
        'aria-live': "polite";
    };
    getNodesProps: () => {
        'data-scope': "tree";
        'data-part': "nodes";
        role: "tree";
    };
}>;