import type { AgentDbMessage, BuiltMemory, BuiltObservationStore, MemoryDescriptor, NewObservation, Observation, ObservationCursor, ObservationLockHandle, ScopeKind, Thread } from '@n8n/agents';
import { AgentMessageRepository } from '../repositories/agent-message.repository';
import { AgentObservationCursorRepository } from '../repositories/agent-observation-cursor.repository';
import { AgentObservationLockRepository } from '../repositories/agent-observation-lock.repository';
import { AgentObservationRepository } from '../repositories/agent-observation.repository';
import { AgentResourceRepository } from '../repositories/agent-resource.repository';
import { AgentThreadRepository } from '../repositories/agent-thread.repository';
export declare class N8nMemory implements BuiltMemory, BuiltObservationStore {
    private readonly threadRepository;
    private readonly messageRepository;
    private readonly resourceRepository;
    private readonly observationRepository;
    private readonly observationCursorRepository;
    private readonly observationLockRepository;
    constructor(threadRepository: AgentThreadRepository, messageRepository: AgentMessageRepository, resourceRepository: AgentResourceRepository, observationRepository: AgentObservationRepository, observationCursorRepository: AgentObservationCursorRepository, observationLockRepository: AgentObservationLockRepository);
    getThread(threadId: string): Promise<Thread | null>;
    saveThread(thread: Omit<Thread, 'createdAt' | 'updatedAt'>): Promise<Thread>;
    private ensureResource;
    deleteThread(threadId: string): Promise<void>;
    deleteThreadsByPrefix(threadIdPrefix: string): Promise<void>;
    getMessages(threadId: string, opts?: {
        limit?: number;
        before?: Date;
        resourceId?: string;
    }): Promise<AgentDbMessage[]>;
    saveMessages(args: {
        threadId: string;
        resourceId: string;
        messages: AgentDbMessage[];
    }): Promise<void>;
    deleteMessages(messageIds: string[]): Promise<void>;
    deleteMessagesByThread(threadId: string, resourceId?: string): Promise<void>;
    getWorkingMemory(params: {
        threadId: string;
        resourceId: string;
        scope: 'resource' | 'thread';
    }): Promise<string | null>;
    saveWorkingMemory(params: {
        threadId: string;
        resourceId: string;
        scope: 'resource' | 'thread';
    }, content: string): Promise<void>;
    appendObservations(rows: NewObservation[]): Promise<Observation[]>;
    getObservations(opts: {
        scopeKind: ScopeKind;
        scopeId: string;
        since?: {
            sinceCreatedAt: Date;
            sinceObservationId: string;
        };
        kindIs?: string;
        limit?: number;
        schemaVersionAtMost?: number;
    }): Promise<Observation[]>;
    getMessagesForScope(scopeKind: ScopeKind, scopeId: string, opts?: {
        since?: {
            sinceCreatedAt: Date;
            sinceMessageId: string;
        };
    }): Promise<AgentDbMessage[]>;
    deleteObservations(ids: string[]): Promise<void>;
    getCursor(scopeKind: ScopeKind, scopeId: string): Promise<ObservationCursor | null>;
    setCursor(cursor: ObservationCursor): Promise<void>;
    acquireObservationLock(scopeKind: ScopeKind, scopeId: string, opts: {
        ttlMs: number;
        holderId: string;
    }): Promise<ObservationLockHandle | null>;
    releaseObservationLock(handle: ObservationLockHandle): Promise<void>;
    describe(): MemoryDescriptor;
    private toObservation;
    private toThread;
    private extractWorkingMemory;
    private mergeWorkingMemory;
    private upsertResourceMetadata;
    private upsertThreadMetadata;
}