twiml.py 文件源码

def xml(self):
        el = ET.Element(self.name)

        keys = self.attrs.keys()
        keys = sorted(keys)
        for a in keys:
            value = self.attrs[a]

            if isinstance(value, bool):
                el.set(a, str(value).lower())
            else:
                el.set(a, str(value))

        if self.body:
            el.text = self.body

        for verb in self.verbs:
            el.append(verb.xml())

        return el