code: def p_genvar(self, p):
          'genvar : ID'
          p[0] = Genvar(name=p[1],
                        width=Width(msb=IntConst('31', lineno=p.lineno(1)),
                                    lsb=IntConst('0', lineno=p.lineno(1)),
                                    lineno=p.lineno(1)),
                        lineno=p.lineno(1))
          p.set_lineno(0, p.lineno(1)f p_genvar(self, p):
          'genvar : ID'
          p[0] = Genvar(name=p[1],
                        width=Width(msb=IntConst('31', lineno=p.lineno(1)),
                                    lsb=IntConst('0', lineno=p.lineno(1)),
                                    lineno=p.lineno(1)),
                        lineno=p.lineno(1))
          p.set_lineno(0, p.lineno(1))
docs: genvar : ID