hardhat/src/internal/builtin-plugins/gas-analytics/type-extensions.ts

Hardhat is an extensible developer tool that helps smart contract developers increase productivity by reliably bringing together the tools they want.

import "../../../types/global-options.js";
declare module "../../../types/global-options.js" {
  export interface GlobalOptions {
    gasStats: boolean;
    gasStatsJson: string | undefined;
  }
}