def render(self, r):
    return '(Uniroot {} {} {} {})'.format(escape_id(self.argname), r(self.function), r(self.min), r(self.max))
def render(self, r):
    return '(Uniroot {} {} {} {})'.format(escape_id(self.argname), r(self.function), r(self.min), r(self.max))