import type { z } from "zod";
export type KvCodec<T> = {
    namespace: string;
    schema: z.ZodType<T>;
    encode: (value: T) => string;
    decode: (raw: string) => T;
};
export declare function createKvCodec<T>(namespace: string, schema: z.ZodType<T>): KvCodec<T>;
export declare function assertValid<T>(schema: z.ZodType<T>, value: unknown, message?: string): T;
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