Backward compatibility to the Notification library

Former-commit-id: b4d38ef

Author: lmbelo

src/Tools/Notification/PyTools.Notification.Channel.pas

@@ -207,6 +207,7 @@ implementation
  System.Rtti,
  PyTools.Exception;
 
+{$IFDEF VER340}
 type
  //For backward compatibility
  TCustomAttributeClass = class of TCustomAttribute;
@@ -216,7 +217,9 @@ TRttiObjectHelper = class helper for TRttiObject
  function GetAttribute(AAttrClass: TCustomAttributeClass): TCustomAttribute; overload;
  function GetAttribute<T: TCustomAttribute>: T; overload; inline;
  end;
+{$ENDIF VER340}
 
+{$IFDEF VER340}
 { TRttiObjectHelper }
 
 function TRttiObjectHelper.GetAttribute(
@@ -234,6 +237,7 @@ function TRttiObjectHelper.GetAttribute<T>: T;
 begin
  Result := T(GetAttribute(T));
 end;
+{$ENDIF VER340}
 
 { RequestChannelAttribute }