import { StringAccessor } from '../types/accessor';
import { LengthUnit, Rect } from '../types/misc';

export declare function guid(): string;
export declare function stringToHtmlId(str: string): string;
export declare function isStringCSSVariable(s: string): boolean;
export declare function getCSSVariableValue(s: string, context: HTMLElement | SVGElement): string;
export declare function getCSSVariableValueInPixels(s: string, context: HTMLElement | SVGElement): number;
export declare function getPixelValue(v: string | number): number | null;
/** Returns the axis-aligned bounding box of `rect` rotated by `angleRad` around the origin */
export declare function getRotatedRectAabb(rect: Rect, angleRad: number): Rect;
/** Returns the translation needed to fit `rect` into `bounds`.
 * When the rect is larger than the bounds, fitting its top left corner takes priority. */
export declare function getRectFitTranslation(rect: Rect, bounds: Rect): {
    dx: number;
    dy: number;
};
export declare function rectIntersect(rect1: Rect, rect2: Rect, tolerancePx?: number): boolean;
export declare function getHref<T>(d: T, identifier: StringAccessor<T>): string;
export declare function parseUnit(value: LengthUnit, basis?: number): number;