hardhat.config.js

require("@nomiclabs/hardhat-waffle");
require('hardhat-abi-exporter');

// This is a sample Hardhat task. To learn how to create your own go to
// https://hardhat.org/guides/create-task.html
task("accounts", "Prints the list of accounts", async (taskArgs, hre) => {
  const accounts = await hre.ethers.getSigners();

  for (const account of accounts) {
    console.log(account.address);
  }
});

// You need to export an object to set up your config
// Go to https://hardhat.org/config/ to learn more

/**
 * @type import('hardhat/config').HardhatUserConfig
 */
module.exports = {
  solidity: "0.8.7",
  abiExporter: [{
    path: './contracts/abi/pretty',
    clear: true,
    flat: true,
    only: ['Disperser','TestToken'],
    except:['IERC20'],
    pretty:true,
    spacing: 2
},{
  path: './contracts/abi/ugly',
      clear: true,
      flat: true,
      only: ['Disperser','TestToken'],
      except:['IERC20'],
      pretty:false,
      spacing: 2
}],

};