import type { App, ComponentPublicInstance, UnwrapRef } from 'vue';
export declare type Nullable<T> = T | null;
export declare type Nillable<T> = T | null | undefined;
export declare type Optional<T> = T | undefined;
export declare type SFCWithInstall<T> = T & {
    install(app: App): void;
};
export declare type UnwrappedInstance<T> = Nullable<ComponentPublicInstance<UnwrapRef<T>>>;
export declare type Enumerable<T> = T | T[];
export declare type IsArray<T> = T extends unknown[] ? T : never;
export declare type UnpackArrayType<T> = T extends (infer R)[] ? R : T;
export declare type ClassValue = Nillable<ClassValue[] | Record<string, Nillable<boolean>> | string>;