public virtual void WriteSerializedRole(IRoleData roleData, Stream outputStream)
        {
            Assert.ArgumentNotNull(roleData, nameof(roleData));
            Assert.ArgumentNotNull(outputStream, "outputStream");

            var memberOfRoles = roleData.MemberOfRoles;

            using (var writer = new YamlWriter(outputStream, 4096, true))
            {
                writer.WriteMap("Role", roleData.RoleName);

                if (memberOfRoles.Any())
                {
                    writer.WriteMap("MemberOf");
                    writer.IncreaseIndent();

                    foreach (var memberOfRole in memberOfRoles)
                    {
                        writer.WriteMap("Role", memberOfRole);
                    }

                    writer.DecreaseIndent();
                }
            }
        }
        public virtual void WriteSerializedUser(SyncUser userData, Stream outputStream)
        {
            Assert.ArgumentNotNull(userData, nameof(userData));
            Assert.ArgumentNotNull(outputStream, "outputStream");

            using (var writer = new YamlWriter(outputStream, 4096, true))
            {
                writer.WriteMap("Username", userData.UserName);
                writer.WriteMap("Email", userData.Email ?? string.Empty);
                writer.WriteMap("Comment", userData.Comment ?? string.Empty);
                writer.WriteMap("Created", userData.CreationDate.ToString("O"));
                writer.WriteMap("IsApproved", userData.IsApproved.ToString());

                if (userData.ProfileProperties.Any())
                {
                    writer.WriteMap("Properties");
                    writer.IncreaseIndent();

                    userData.ProfileProperties.Sort((x, y) => string.Compare(x.Name, y.Name, StringComparison.Ordinal));
                    userData.ProfileProperties.ForEach(profileProperty =>
                    {
                        writer.WriteBeginListItem("Key", profileProperty.Name);
                        writer.WriteMap("Value", GetSerializedProfileContent(profileProperty));
                        writer.WriteMap("ValueType", profileProperty.Content.GetType().AssemblyQualifiedName);
                        writer.WriteMap("IsCustom", profileProperty.IsCustomProperty.ToString());
                    });

                    writer.DecreaseIndent();
                }

                if (userData.Roles.Any())
                {
                    userData.Roles.Sort();

                    writer.WriteMap("Roles");
                    writer.IncreaseIndent();

                    userData.Roles.ForEach(roleName =>
                    {
                        writer.WriteMap("MemberOf", roleName);
                    });

                    writer.DecreaseIndent();
                }
            }
        }