/**
 * @dev Fuction to set an error message
 * @param message Error object
 * @returns The error message
 */
import { Signer } from 'ethers';
import { Transaction } from './transactions';
import { Internal } from './internal';
declare const createError: (message?: any) => Error;
declare const approveUSDC: (spender: string, amount: string, signer: Signer, transaction: Transaction, internal: Internal) => Promise<void>;
declare const waitTime: (seconds: number) => Promise<unknown>;
declare const getxNGNBalance: (owner: any, signer?: Signer) => Promise<bigint>;
declare const approvexNGN: (spender: string, amount: string, signer: Signer, transaction: Transaction, internal: Internal) => Promise<void>;
export { createError, approveUSDC, waitTime, getxNGNBalance, approvexNGN, };