text: const _baseRate = 0.005;
  const _bonusRate = 0.02;
  const _bindingBonusRate = 0.01;
  const _bonusLimit = 500;
  
  module.exports = {
    isBinding: true,
    port: 9090,
    getBaseRate() {
      return _baseRate;
    },
    getBonusRate() {
      return _bonusRate;
    },
    getBonusLimit() {
      return _bonusLimit;
    },
    getBindingBonusRate() {
      return this.isBinding ? _bindingBonusRate : 0;
    }
  };
  