import type BigNumber from "bignumber.js";
import type Irys from "./irys";
import type { UploadResponse } from "./types";
export declare class Approval {
    protected irys: Irys;
    constructor(irys: Irys);
    getApprovedBalance({ payingAddress, token, approvedAddress, }: {
        payingAddress?: string;
        token?: string;
        approvedAddress: string;
    }): Promise<GetApprovedBalanceResponseBody>;
    createApproval({ approvedAddress, amount, expiresInSeconds, }: {
        approvedAddress: string;
        amount: string | number | BigNumber;
        expiresInSeconds?: number | string;
    }): Promise<UploadResponse>;
    revokeApproval({ approvedAddress }: {
        approvedAddress: string;
    }): Promise<UploadResponse>;
}
type GetApprovedBalanceResponseBody = {
    amount: string;
    expiresBy?: string;
};
export declare enum UploadApprovalTags {
    APPROVE_PAYMENT = "x-irys-approve-payment",
    DELETE_APPROVAL = "x-irys-delete-payment-approval"
}
export declare enum UploadApprovalMetaTags {
    AMOUNT = "x-amount",
    EXPIRE_SECONDS = "x-expire-seconds"
}
export {};