import { BigNumber } from "ethers";
/**
 * Used to add a small safety premium to estimated fees. This protects
 * against small fluctuations is gas estimation, and thus increases
 * the chance that bundles get accepted during aggregation.
 *
 * @param feeEstimate fee required for bundle
 * @param safetyDivisor optional safety divisor. Default is 5
 * @returns fee estimate with added safety premium
 */
export default function addSafetyPremiumToFee(feeEstimate: BigNumber, safetyDivisor?: number): BigNumber;
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