import { ALIGN, DIRECTION } from "./constants/values";
import Flicking, { FlickingOptions } from "./Flicking";
import { ElementLike } from "./types/external";
import { LiteralUnion, Merged, ValueOf } from "./types/internal";
export declare const merge: <From extends object, To extends object>(target: From, ...sources: To[]) => Merged<From, To>;
export declare const getElement: (el: HTMLElement | string | null, parent?: HTMLElement | undefined) => HTMLElement;
export declare const checkExistence: (value: any, nameOnErrMsg: string) => void;
export declare const clamp: (x: number, min: number, max: number) => number;
export declare const getFlickingAttached: (val: Flicking | null) => Flicking;
export declare const toArray: <T>(iterable: ArrayLike<T>) => T[];
export declare const parseAlign: (align: LiteralUnion<ValueOf<typeof ALIGN>> | number, size: number) => number;
export declare const parseBounce: (bounce: FlickingOptions["bounce"], size: number) => number[];
export declare const parseArithmeticSize: (cssValue: number | string, base: number) => number | null;
export declare const parseArithmeticExpression: (cssValue: number | string) => {
    percentage: number;
    absolute: number;
} | null;
export declare const parseCSSSizeValue: (val: string | number) => string;
export declare const parsePanelAlign: (align: FlickingOptions["align"]) => string | number;
export declare const getDirection: (start: number, end: number) => ValueOf<typeof DIRECTION>;
export declare const parseElement: (element: ElementLike | ElementLike[]) => HTMLElement[];
/**
 * Parse an HTML string into elements with sanitization, used by {@link Flicking.setStatus} to restore
 * panels from a serialized `html` string. The string is parsed inside a `<template>` (an inert
 * document, so no script runs and no resource loads), event-handler attributes and script-capable
 * elements are stripped, and the result is imported — neutralizing a mutation-XSS payload revived by
 * the `outerHTML`→`innerHTML` round-trip.
 */
export declare const parseSanitizedElement: (html: string) => HTMLElement[];
export declare const getMinusCompensatedIndex: (idx: number, max: number) => number;
export declare const includes: <T>(array: T[], target: any) => target is T;
export declare const isString: (val: any) => val is string;
export declare const circulatePosition: (pos: number, min: number, max: number) => number;
export declare const find: <T>(array: T[], checker: (val: T) => boolean) => T | null;
export declare const findRight: <T>(array: T[], checker: (val: T) => boolean) => T | null;
export declare const findIndex: <T>(array: T[], checker: (val: T) => boolean) => number;
export declare const getProgress: (pos: number, prev: number, next: number) => number;
export declare const getStyle: (el: HTMLElement) => CSSStyleDeclaration;
export declare const setSize: (el: HTMLElement, { width, height }: Partial<{
    width: number | string;
    height: number | string;
}>) => void;
export declare const isBetween: (val: number, min: number, max: number) => boolean;
export declare const circulateIndex: (index: number, max: number) => number;
export declare const range: (end: number) => number[];
export declare const getElementSize: ({ el, horizontal, useFractionalSize, useOffset, style }: {
    el: HTMLElement;
    horizontal: boolean;
    useFractionalSize: boolean;
    useOffset: boolean;
    style: CSSStyleDeclaration;
}) => number;
export declare const setPrototypeOf: (o: any, proto: object | null) => any;
export declare const camelize: (str: string) => string;
export declare const getDataAttributes: (element: HTMLElement, attributePrefix: string) => Record<string, string>;