AL.Sharepoint.Core.Utils.SecurityContext.UseAppPoolIdentity C# (CSharp) Method

        private void UseAppPoolIdentity()
        {
            try
            {
                if (!WindowsIdentity.GetCurrent().IsSystem)
                {
                    _ctx = WindowsIdentity.Impersonate(IntPtr.Zero);
                }
            }
            catch { }
        }