dao-and-user.js

class ETH { }
class Galt { }
class Space { }
class Account { }

class DAO {
    galtToken: Galt;
    spaceToken: Space;
    eth: ETH;

    constructor(daoSettings) {
        this.galtToken = new Galt();
        this.spaceToken = new Space();
    }

    generateAccounts() {
        // generate accounts
    }

    generateSpaces() {
        // generate spaces
    }

    addUser(){
      return new DAOUser(this);
    }
}

class DAOUser {
  account: Account;
  dao: DAO;

  constructor(dao: DAO){
    this.dao = dao;
  }
  buyTokens(tokensCount){
    this.dao.galt.buyTokens(this.adccount.address, tokensCount);
  }
}