How to Read Inport Parameter in Libarary Model.

Hi,

I can able to Read the Parameter of inport Block, Using the Signal Hierarchy in Simulink Model.

But in Simulink Library Model I cant able to Read the Parameter of inport Block. Because the Signal Hierarchy option is disabled in in Simulink Library Model..

How can i Read the Parameters (Parent and Children) in Library Model.

Thank in Advance.

Eg:

A = get_param( 'Rough/in_port', 'PortHandles');

B = get_param(A.Inport, 'SignalHierarchy');