public static void Update(this OrganizationUnitManager manager, OrganizationUnit organizationUnit)
 {
     AsyncHelper.RunSync(() => manager.UpdateAsync(organizationUnit));
 }
        public virtual async Task UpdateAsync(OrganizationUnit organizationUnit)
        {
            await ValidateOrganizationUnitAsync(organizationUnit);

            await OrganizationUnitRepository.UpdateAsync(organizationUnit);
        }