import type { MutableRefObject } from 'react';
/**
 * React.Ref uses the readonly type `React.RefObject` instead of
 * `React.MutableRefObject`, We pretty much always assume ref objects are
 * mutable (at least when we create them), so this type is a workaround so some
 * of the weird mechanics of using refs with TS.
 */
export declare type AssignableRef<ValueType> = {
    bivarianceHack(instance: ValueType | null): void;
}['bivarianceHack'] | MutableRefObject<ValueType | null>;
/**
 * Type can be either a single `ValueType` or an array of `ValueType`
 */
export declare type SingleOrArray<ValueType> = ValueType[] | ValueType;
export declare type ElementTagNameMap = HTMLElementTagNameMap & Pick<SVGElementTagNameMap, Exclude<keyof SVGElementTagNameMap, keyof HTMLElementTagNameMap>>;