When the virtual property is applied to an electrical subcircuit, the subcircuit will not be included in netlist output. This means that in SPICE output, the corresponding ``.subckt'' block of lines will be absent. However, calls to this subcircuit, if any, will be included, and must be resolved through text from a .include line or by some other means.
This is a method for including ``foreign'' subcircuits within the Xic/WRspice framework.
The numerical value of the property is 6. The property string is ``virtual''. Xic will always set the property string to this value. This property applies only to electrical cell definitions (subcircuits). The format is
5 5 virtual;