import { providers } from 'ethers';
import BaseService from '../commons/BaseService';
import { EthereumTransactionTypeExtended, tEthereumAddress } from '../commons/types';
import { IERC721 } from './typechain/IERC721';
declare type ApproveType = {
    user: tEthereumAddress;
    token: tEthereumAddress;
    spender: tEthereumAddress;
    token_id: string;
};
declare type ApproveAllType = {
    user: tEthereumAddress;
    token: tEthereumAddress;
    spender: tEthereumAddress;
    token_ids: string[];
};
declare type SetApproveAllType = {
    user: tEthereumAddress;
    token: tEthereumAddress;
    spender: tEthereumAddress;
};
export interface IERC721ServiceInterface {
    isApproved: (args: ApproveType) => Promise<boolean>;
    isApprovedForAll: (args: ApproveAllType) => Promise<boolean>;
    approve: (args: ApproveType) => EthereumTransactionTypeExtended;
    setApprovalForAll: (args: SetApproveAllType) => EthereumTransactionTypeExtended;
}
export declare class ERC721Service extends BaseService<IERC721> implements IERC721ServiceInterface {
    constructor(provider: providers.Provider);
    approve({ user, token, spender, token_id }: ApproveType): EthereumTransactionTypeExtended;
    isApproved({ user, token, spender, token_id }: ApproveType): Promise<boolean>;
    setApprovalForAll({ user, token, spender }: SetApproveAllType): EthereumTransactionTypeExtended;
    isApprovedForAll({ user, token, spender, token_ids }: ApproveAllType): Promise<boolean>;
    balanceOf(token: string, owner: string): Promise<import("ethers").BigNumber>;
}
export {};
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