export type DeepReadonlyArray<T> = ReadonlyArray<DeepReadonly<T>>;
export type DeepReadonlyObject<T> = {
    readonly [P in keyof T]: DeepReadonly<T[P]>;
};
export type DeepReadonly<T> = T extends Set<infer R> ? ReadonlySet<DeepReadonly<R>> : T extends Map<infer R, infer Y> ? ReadonlyMap<R, DeepReadonly<Y>> : T extends (infer R)[] ? DeepReadonlyArray<R> : T extends Function ? T : T extends object ? DeepReadonlyObject<T> : T;
export declare const deepFreeze: <T>(val: T) => DeepReadonly<T>;
export type NonFunction = object | string | number | boolean | null | undefined;
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