'Add a <Number> element
:param number: phone number to dial
:param send_digits: play DTMF tones when the call is answered
:param url: TwiML URL
:param method: TwiML URL method
:param status_callback_event: events to call status callback
:param status_callback: status callback URL
:param status_callback_method: status callback URL method
:param kwargs: additional attributes
:return: <Dial> element'

def number(self, number, send_digits=None, url=None, method=None, status_callback_event=None, status_callback=None, status_callback_method=None, **kwargs):

    return self.nest(Number(number, send_digits=send_digits, url=url, method=method, status_callback_event=status_callback_event, status_callback=status_callback, status_callback_method=status_callback_method, **kwargs))
