Foreach loop inside List<T> class

        public class GuildInformation
        {
            public ulong GuildID { get; set; }
            public string GuildName { get; set; }
            public string GuildDescription { get; set; }
            public string GuildAvatarUrl { get; set; }
            public string GuildBannerUrl { get; set; }
            public string GuildSplashUrl { get; set; }
            public string GuildDiscoveryUrl { get; set; }
            public string GuildVanityUrl { get; set; }
            public string GuildCreationDate { get; set; }
            public ulong GuildOwnerID { get; set; }
            public string GuildOwnerName { get; set; }
            public int GuildMfaLevel { get; set; }
            public int GuildNsfwLevel { get; set; }
            public int GuildVerificationLevel { get; set; }
            public ulong GuildRulesChannel { get; set; }
            public ulong GuildSafetyChannel { get; set; }
            public ulong GuildPublicChannel { get; set; }
            public ulong GuildModRuleChannel { get; set; }
            public GuildPermissions GuildPermission { get; set; }
        }

        public class GuildPermissions
        {
            public List<GuildRolePermissions> GuildRolePermission { get; set; }
            public List<GuildChannelPermissions> GuildPermissionPermission { get; set; }
        }

        public class GuildRolePermissions
        {
            public string GuildRoleName { get; set; }
            public ulong GuildRoleID { get; set; }
            public int GuildRolePermissionLevel { get; set; }
        }

        public GuildInformation CreateGuildInformation( - In here I store the parameters for GuildInformation -, SocketGuild Guild)
        {
            var GuildRoleCollection = new List<GuildRolePermissions>();

                var GuildInformation = new GuildInformation()
            {
                    GuildID = GuildID,
                    GuildName = GuildName,
                    // etc...
            
                    GuildPermissions = new()
                    {
                        foreach (var GuildRole in Guild.Roles
                        {
                                var AddRole = new GuildRolePermission
                                {
                                    GuildRoleName = GuildRole.Name,
                                    GuildRoleID = GuildRole.Id,
                                    GuildRolePermissionLevel = 0
                                }
                        };
                        GuildRoleCollection.Add(AddRole);
                    }
            };
            return GuildInformation;
        }