import type { ArgentBackendNetworkId } from "../argent/type";
import { Address } from "../chains";
import { Collection, NftItem, NFTService, PaginatedItems, PaginatedCollections } from "./interface";
export type BackendCollectionType = "erc721" | "erc1155" | "starknetErc721" | "starknetErc1155";
export declare class ArgentBackendNftService implements NFTService {
    protected readonly apiBase: string;
    private readonly headers;
    private readonly httpService;
    constructor(apiBase: string, headers: RequestInit | undefined);
    getNfts(chain: string, network: ArgentBackendNetworkId, _address: string, page?: number): Promise<PaginatedItems>;
    getCollection(chain: string, network: ArgentBackendNetworkId, _collectionAddress: string): Promise<Collection>;
    getNft(chain: string, network: ArgentBackendNetworkId, _collectionAddress: string, itemId: string): Promise<NftItem>;
    getProfileCollections(chain: string, network: ArgentBackendNetworkId, address: string, page?: number, withMetrics?: boolean): Promise<PaginatedCollections>;
    private getCollectionMetrics;
    protected normalizeAddress(address: string): Address;
    protected pageToPageIndex(page: number): number;
}