import Dexie, { type EntityTable } from 'dexie';
import type { Database, Graph, MacroBlock } from './types';
/** Database instance to work with IndexedDB. */
export declare const db: Dexie & {
    graphs: EntityTable<Graph, "id">;
};
export declare class IndexedDBSource implements Database {
    deleteMacro(id: string): Promise<void>;
    clearGraphs(): Promise<void>;
    clearMacroBlocks(): Promise<void>;
    getGraphs(): Promise<Graph[]>;
    getMacroBlocks(): Promise<MacroBlock[]>;
    getMacroBlock(id: string): Promise<MacroBlock | undefined>;
    getGraph(id: string): Promise<Graph | undefined>;
    saveMacroBlock(graph: MacroBlock): Promise<string>;
    saveGraph(graph: Graph): Promise<string>;
    saveMacroBlocks(graphs: MacroBlock[]): Promise<string>;
    saveGraphs(graphs: Graph[]): Promise<string>;
    numGraphs: import("dexie").Observable<number>;
    get numMacroBlocks(): import("dexie").Observable<number>;
    graphs: import("dexie").Observable<Graph[]>;
    get macroblocks(): import("dexie").Observable<Graph[]>;
}