import { BigNumberish } from "ethers";
import { CeloTransaction, CeloTransactionCip64, CeloTransactionCip66 } from "../transactions";
export declare function isEmpty(value: string | BigNumberish | undefined | null): boolean;
export declare function isPresent(value: string | BigNumberish | undefined | null): boolean;
export declare function isCIP64(tx: CeloTransaction): tx is CeloTransactionCip64;
export declare function isCIP66(tx: CeloTransaction): tx is CeloTransactionCip66;
export declare function concatHex(values: string[]): `0x${string}`;
export declare function omit<T extends Object, K extends (keyof T)[]>(object: T, ...keys: K): {
    [Key in keyof T as Key extends K ? never : Key]: T[Key];
};
export declare function adjustForGasInflation(gas: bigint): bigint;
interface ConversionParams {
    amountInCelo: bigint;
    ratioCELO: bigint;
    ratioTOKEN: bigint;
}
/**
 *
 * @param param0 @ConversionParams
 *  ratioTOKEN will come from the first position (or numerator) of tuple returned from SortedOracles.medianRate
 *  ratioCELO will come from the second position (or denominator) of tuple returned from SortedOracles.medianRate
 
 * @returns amount in token equal in value to the amountInCelo given.
 */
export declare function convertFromCeloToToken({ amountInCelo, ratioCELO, ratioTOKEN, }: ConversionParams): bigint;
export {};