import * as z from "zod/v4";
import { ClosedEnum } from "../types/enums.js";
export declare const CompactionItemType: {
    readonly Compaction: "compaction";
};
export type CompactionItemType = ClosedEnum<typeof CompactionItemType>;
/**
 * A context compaction marker with encrypted summary
 */
export type CompactionItem = {
    encryptedContent: string;
    id?: string | null | undefined;
    type: CompactionItemType;
};
/** @internal */
export declare const CompactionItemType$outboundSchema: z.ZodEnum<typeof CompactionItemType>;
/** @internal */
export type CompactionItem$Outbound = {
    encrypted_content: string;
    id?: string | null | undefined;
    type: string;
};
/** @internal */
export declare const CompactionItem$outboundSchema: z.ZodType<CompactionItem$Outbound, CompactionItem>;
export declare function compactionItemToJSON(compactionItem: CompactionItem): string;
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