/**
 * egjs-grid
 * Copyright (c) 2021-present NAVER Corp.
 * MIT license
 */
import Grid from "./Grid";
import { GRID_PROPERTY_TYPES } from "./consts";
import { GridItem } from "./GridItem";
import { ResizeWatcherEntry } from "./ResizeWatcher";
export declare function getKeys<T extends Record<string, any>>(obj: T): Array<keyof T>;
export declare function getUpdatedItems(items: GridItem[], entries: ResizeWatcherEntry[]): GridItem[];
export declare function getMountedItems(items: GridItem[]): GridItem[];
export declare function getMountedElements(items: GridItem[]): HTMLElement[];
export declare function isString(val: any): val is string;
export declare function isObject(val: any): val is object;
export declare function isFunction(val: any): val is Function;
export declare function isNumber(val: any): val is number;
export declare function camelize(str: string): string;
export declare function sum(arr: number[]): number;
export declare function getDataAttributes(element: HTMLElement, attributePrefix: string): Record<string, string>;
export declare function GetterSetter(component: {
    prototype: Grid<any>;
    propertyTypes: typeof GRID_PROPERTY_TYPES;
}): void;
export declare function withMethods(methods: readonly string[]): (prototype: any, memberName: string) => void;
export declare function range(length: number): number[];
export declare function getRangeCost(value: number, valueRange: number[]): number;
export declare function between(value: number, min: number, max: number): number;
export declare function throttle(num: number, unit?: number): number;
/**
 * Decorator that makes the method of grid available in the framework.
 * @ko 프레임워크에서 그리드의 메소드를 사용할 수 있게 하는 데코레이터.
 * @memberof eg.Grid
 * @private
 * @example
 * ```js
 * import { withGridMethods } from "@egjs/grid";
 *
 * class Grid extends React.Component<Partial<GridProps & GridOptions>> {
 *   &#64;withGridMethods
 *   private grid: NativeGrid;
 * }
 * ```
 */
export declare const withGridMethods: (prototype: any, memberName: string) => void;