How to obtain VarybycubeTypeId to use it in the function GetICMemberFilter

Hi Everyone, I hope all are well.

I am trying to use the GetICMemberFilter function in a business rule but I don't know how to get the VarybyCubeTypeId.

Does anyone would know how to obtain the VarybyCubeTypeId using a XFBR?

Thank you for all the help.