import type { PathwayState } from "./types.js";
/**
 * Internal implementation of PathwayState interface that uses KV storage
 * for tracking processed events to prevent duplicate processing
 */
export declare class InternalPathwayState implements PathwayState {
    /**
     * Default time-to-live for processed event records (5 minutes)
     * @private
     */
    private static readonly DEFAULT_TTL_MS;
    /**
     * The KV adapter instance for storage
     * @private
     */
    private kv;
    /**
     * Gets or initializes the KV adapter
     *
     * @private
     * @returns The KV adapter instance
     */
    private getKv;
    /**
     * Checks if an event has already been processed
     *
     * @param eventId The ID of the event to check
     * @returns True if the event has been processed, false otherwise
     */
    isProcessed(eventId: string): Promise<boolean>;
    /**
     * Marks an event as processed
     *
     * @param eventId The ID of the event to mark as processed
     * @returns Promise that resolves when the operation completes
     */
    setProcessed(eventId: string): Promise<void>;
}
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