export interface StoredDocument {
    id: string;
    document_type: string;
    label: string;
    fields: Record<string, unknown>;
    created_at: string;
    updated_at: string;
}
export interface DocumentMetadata {
    id: string;
    type: string;
    label: string;
    expiry_date?: string;
}
export declare function addDocument(baseDir: string, key: Uint8Array, input: {
    document_type: string;
    label: string;
    fields: Record<string, unknown>;
}): StoredDocument;
export declare function listDocuments(baseDir: string, key: Uint8Array): DocumentMetadata[];
export declare function getDocumentsByType(baseDir: string, key: Uint8Array, documentType: string): StoredDocument[];
export declare function getDocumentById(baseDir: string, key: Uint8Array, id: string): StoredDocument | null;
export declare function updateDocument(baseDir: string, key: Uint8Array, id: string, fields: Record<string, unknown>): boolean;
export declare function deleteDocument(baseDir: string, key: Uint8Array, id: string): boolean;