import type { EVMAddress } from "@rarible/types";
import type { Ethereum, EthereumTransaction } from "@rarible/ethereum-provider";
import type { Maybe } from "@rarible/types";
import type { SendFunction } from "../common/send-transaction";
export declare function approveErc721(ethereum: Maybe<Ethereum>, send: SendFunction, contract: EVMAddress, owner: EVMAddress, operator: EVMAddress): Promise<EthereumTransaction | undefined>;