/**
 * Helper type for {@link classShape}.
 *
 * @category Internal
 */
export type AnyConstructor = new (...args: any[]) => any;
/**
 * Creates a shape for a specific class. Value checks are done through `instanceof`.
 *
 * @category Shape
 * @example
 *
 * ```ts
 * import {classShape, checkValidShape} from 'object-shape-tester';
 *
 * const myShape = classShape(RegExp);
 *
 * checkValidShape(/hi/, myShape); // `true`
 * checkValidShape('hi', myShape); // `false`
 * ```
 */
export declare function classShape<T extends AnyConstructor>(classConstructor: T, defaultValue?: InstanceType<T> | undefined): import("../shape/shape.js").Shape<import("@sinclair/typebox").TUnsafe<InstanceType<T>>>;