BBTK_TEMPLATE_INPUT(Relay,In,"Input",T);
BBTK_TEMPLATE_OUTPUT(Relay,Out,"Output",T);
BBTK_END_DESCRIBE_TEMPLATE_BLACK_BOX(Relay);
BBTK_TEMPLATE_INPUT(Relay,In,"Input",T);
BBTK_TEMPLATE_OUTPUT(Relay,Out,"Output",T);
BBTK_END_DESCRIBE_TEMPLATE_BLACK_BOX(Relay);