import * as sqlite3 from 'sqlite3';
/**
 * Loads SQLite VSS Extension for vector similarity search.
 * Uses sqlite-vss package if available, otherwise falls back to manual path resolution.
 */
export declare class VssLoader {
    /**
     * Loads the VSS extension into the given database.
     *
     * @param db The SQLite database instance
     */
    loadExtension(db: sqlite3.Database): Promise<void>;
    /**
     * Gets the path to the VSS extension binary for the current platform.
     * Fallback method if sqlite-vss package is not available.
     *
     * @param platform The platform (win32, linux, darwin)
     * @param arch The architecture (x64, arm64, etc.)
     * @returns Path to the VSS extension binary
     */
    private getVssPath;
    /**
     * Checks if VSS extension is available.
     *
     * @returns true if VSS extension is available, false otherwise
     */
    isAvailable(): boolean;
}
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