import type { AdapterState, AdapterHealth, ObservationBatch } from "../../types/index.js";
import type { DocumentAdapter } from "./types.js";
export declare class DocumentAdapterImpl implements DocumentAdapter {
    readonly metadata: {
        name: string;
        version: string;
        kind: "document";
        category: "integration";
        description: string;
    };
    private _state;
    private _config?;
    private _health;
    get state(): AdapterState;
    get health(): AdapterHealth;
    private setHealth;
    private transition;
    private documentsDirectory;
    private maxSnippetLength;
    private listFiles;
    private walk;
    private detectFormat;
    private readText;
    private snippet;
    private hash;
    discover(): Promise<AdapterState>;
    configure(config: Record<string, unknown>): Promise<AdapterState>;
    validate(): Promise<AdapterState>;
    enable(): Promise<AdapterState>;
    disable(): Promise<AdapterState>;
    healthCheck(): Promise<AdapterState>;
    observe(): Promise<ObservationBatch>;
}
export declare function createDocumentAdapter(): DocumentAdapterImpl;