import { Placement } from '@floating-ui/vue';
import { MaybeArray } from './types';
export declare function createArray(length: number, startOffset?: number): number[];
export declare function searchString(match: MaybeArray<string | number | null | undefined>, input?: string): boolean;
export declare function getMaybeRefLength(value: string | number): number;
export declare function isNil(value: any): value is undefined | null;
/**
 * Checks wether a color is light or dark, depending on
 */
export declare function calculateColorLightness(r: number, g: number, b: number): 'dark' | 'light';
/**
 * Convert a CSS rgb string to a tuple of actual r,g,b values
 *
 * 'rgb(12,16,24)' --> [12, 16, 24]
 */
export declare function stringRgbToValues(rgbString: string): [number, number, number];
export declare function randomMinMax(min: number, max: number): number;
export declare function delay(amount: number): Promise<any>;
export declare function setCharAt(str: string, char: string | number, index: number): string;
export declare function isCssValue(value: string): boolean;
/**
 * Takes in a value and if it is a number, appends "px" to it, otherwise returns
 * the original value.
 *
 */
export declare function formatUnitValue(value: string | number, unit?: string): string;
export declare function clamp(min: number, max: number, value: number): number;
export declare function getPlacementAnimationName(position: Placement): string;