regex101: C# class to interface

Regular Expression

public ([\w><]+ [\w><]+\(\))\s+{[^}]+}

New

using System.Linq;
using NineYi.ERPV2.DA.AppDB.Tables;

namespace NineYi.ERPV2.DA.Repositories.DbRepositories
{
    /// <summary>
    /// AppDbRepository
    /// </summary>
    public class AppDbRepository : IAppDbRepository
    {
        /// <summary>
        /// AppDbContext
        /// </summary>
        private AppDbContext _appDbContext;

        /// <summary>
        /// Initializes a new instance of the <see cref="AppDbRepository" /> class.
        /// </summary>
        /// <param name="appDbContext">AppDbContext</param>
        public AppDbRepository(AppDbContext appDbContext)
        {
            this._appDbContext = appDbContext;
        }

        /// <summary>
        /// SaveChanges
        /// </summary>
        public void SaveChanges()
        {
            this._appDbContext.SaveChanges();
        }

        /// <summary>
        /// QueryUserCoupons 
        /// </summary>
        /// <returns>UserCoupons</returns>
        public IQueryable<user_coupon> QueryUserCou

Substitution

\1;

using System.Linq;
using NineYi.ERPV2.DA.AppDB.Tables;

namespace NineYi.ERPV2.DA.Repositories.DbRepositories
{
    /// <summary>
    /// AppDbRepository
    /// </summary>
    public class AppDbRepository : IAppDbRepository
    {
        /// <summary>
        /// AppDbContext
        /// </summary>
        private AppDbContext _appDbContext;

        /// <summary>
        /// Initializes a new instance of the <see cref="AppDbRepository" /> class.
        /// </summary>
        /// <param name="appDbContext">AppDbContext</param>
        public AppDbRepository(AppDbContext appDbContext)
        {
            this._appDbContext = appDbContext;
        }

        /// <summary>
        /// SaveChanges
        /// </summary>
        public void SaveChanges()
        {
            this._appDbContext.SaveChanges();
        }

        /// <summary>
        /// QueryUserCoupons 
        /// </summary>
        /// <returns>UserCoupons</returns>
        public IQueryable<user_coupon> QueryUserCou