import type { Predicate } from "effect";
import * as Effect from "effect/Effect";
type NestedObject<T> = {
    [key: string]: T | NestedObject<T>;
};
export declare const mapLeaves: <T, U>(obj: NestedObject<T>, leafRefinement: Predicate.Refinement<unknown, T>, f: (value: T) => U) => NestedObject<U>;
export declare const forEachBranchLeaves: <T, A, E, R>(obj: NestedObject<T>, leafRefinement: Predicate.Refinement<unknown, T>, f: (branchLeaves: {
    path: string[];
    values: Record<string, T>;
}) => Effect.Effect<A, E, R>) => Effect.Effect<void, E, R>;
export declare const setNestedProperty: <T extends object>(obj: T, path: PropertyKey[], value: any) => T;
export {};
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