import type { CheckpointStore } from "./contracts.js";
export declare const CHECKPOINT_CONFLICT_CODE = "ERR_PRISM_CHECKPOINT_CONFLICT";
export declare class CheckpointConflictError extends Error {
    readonly code = "ERR_PRISM_CHECKPOINT_CONFLICT";
    constructor(message: string);
}
export interface MemoryCheckpointStoreOptions {
    readonly maxPageSize?: number;
    /** Capacity bound: least-recently-saved records are evicted past this count (default 10_000). */
    readonly maxRecords?: number;
    /** Per-record bound on the JSON-encoded value in bytes (default 1 MiB); oversized values are rejected. */
    readonly maxValueBytes?: number;
}
/** In-process reference implementation of the generic checkpoint contract. */
export declare function createMemoryCheckpointStore(options?: MemoryCheckpointStoreOptions): CheckpointStore;