code: def p_systemcall_noargs(self, p):
          'systemcall : DOLLER ID'
          p[0] = SystemCall(p[2], (), lineno=p.lineno(1))
          p.set_lineno(0, p.lineno(1)f p_systemcall_noargs(self, p):
          'systemcall : DOLLER ID'
          p[0] = SystemCall(p[2], (), lineno=p.lineno(1))
          p.set_lineno(0, p.lineno(1))
docs: systemcall : DOLLER ID