import type { AgentMessageDirection, AgentMessageRecord } from '../../../shared/messages.js';
export declare class MessageStore {
    private readonly agentId;
    constructor(agentId: string);
    appendIfAbsent(record: AgentMessageRecord): Promise<{
        inserted: boolean;
        record: AgentMessageRecord;
    }>;
    appendManyIfAbsent(records: AgentMessageRecord[]): Promise<{
        inserted: number;
    }>;
    readAll(): Promise<AgentMessageRecord[]>;
    hasMessageId(messageId: string): Promise<boolean>;
    readLatest(input: {
        before?: string;
        channel?: string;
        direction?: AgentMessageDirection;
        limit: number;
        matches?: (entry: AgentMessageRecord) => boolean;
        since?: string;
    }): Promise<AgentMessageRecord[]>;
    private log;
}
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