import { Signer } from "@ethersproject/abstract-signer";
import { BigNumberish } from "@ethersproject/bignumber";
export default class ApprovalHelper {
    static erc20(approver: Signer, token: string, spender: string, amount: BigNumberish): Promise<any>;
    static erc721(approver: Signer, token: string, to: string, tokenId: BigNumberish): Promise<any>;
    static erc721All(approver: Signer, token: string, operator: string): Promise<any>;
    static erc1155All(approver: Signer, token: string, operator: string): Promise<any>;
}
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