import type { PampIdentity, PampSession, PampContact, PampMessage } from './types.js';
export declare function ensurePampDirs(): Promise<void>;
export declare function saveIdentity(identity: PampIdentity): Promise<void>;
export declare function loadIdentity(): Promise<PampIdentity | null>;
export declare function requireIdentity(): Promise<PampIdentity>;
export declare function saveSession(session: PampSession): Promise<void>;
export declare function loadSession(agreementId: string): Promise<PampSession | null>;
export declare function listSessions(): Promise<PampSession[]>;
export declare function saveContact(contact: PampContact): Promise<void>;
export declare function loadContact(mailboxId: string): Promise<PampContact | null>;
export declare function loadContactByAddress(address: string): Promise<PampContact | null>;
export declare function listContacts(): Promise<PampContact[]>;
export declare function saveMessage(message: PampMessage, folder: 'inbox' | 'sent'): Promise<void>;
export declare function loadMessage(messageId: string, folder: 'inbox' | 'sent'): Promise<PampMessage | null>;
export declare function listMessages(folder: 'inbox' | 'sent'): Promise<PampMessage[]>;
export declare function updateMessageReadAt(messageId: string, folder: 'inbox' | 'sent', readAt: string): Promise<void>;
export declare function saveThread(threadId: string, messageIds: string[]): Promise<void>;
export declare function loadThread(threadId: string): Promise<string[] | null>;
export declare function addToThread(threadId: string, messageId: string): Promise<void>;
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