001package com.plivo.api.models.account; 002 003public enum BillingMode { 004 PREPAID("prepaid"), POSTPAID("postpaid"); 005 006 private String billingMode; 007 008 BillingMode(String billingMode) { 009 this.billingMode = billingMode; 010 } 011 012 @Override 013 public String toString() { 014 return billingMode; 015 } 016}