export type constructor<T> = new (...args: any[]) => T;
export interface InstanceOfClass<T = unknown> {
    new (...args: unknown[]): T;
}
export interface Instance<T = unknown> {
    new (...args: unknown[]): T;
}
export declare const Is: {
    nullish: <T>(value: T | undefined | null) => value is null | undefined;
    object: (target: unknown) => target is object;
    instance: (target: unknown) => target is InstanceOfClass;
    constructor: (target: unknown) => target is constructor<unknown>;
};
export declare function resolveConstructor(target: object): object;