/// <reference types="node" />
import { Buffer } from 'buffer';
export interface UploadResult {
    error?: string;
}
export declare abstract class Storage {
    getAssetCostToStore: (files: Map<string, Buffer>, arweaveRate: number, solanaRate: number) => Promise<number>;
    upload: (files: Map<string, Buffer>, mintKey: string, txid: string) => Promise<UploadResult>;
}