def __init__(self, version, payload, phone_number=None):
super(PhoneNumberInstance, self).__init__(version)<EOL>self._properties = {<EOL>'<STR_LIT>': payload['<STR_LIT>'],<EOL>'<STR_LIT>': payload['<STR_LIT>'],<EOL>'<STR_LIT>': payload['<STR_LIT>'],<EOL>'<STR_LIT>': payload['<STR_LIT>'],<EOL>'<STR_LIT>': payload['<STR_LIT>'],<EOL>'<STR_LIT>': payload['<STR_LIT>'],<EOL>'<STR_LIT:url>': payload['<STR_LIT:url>'],<EOL>}<EOL>self._context = None<EOL>self._solution = {'<STR_LIT>': phone_number or self._properties['<STR_LIT>'], }<EOL>
Initialize the PhoneNumberInstance

:returns: twilio.rest.lookups.v1.phone_number.PhoneNumberInstance
:rtype: twilio.rest.lookups.v1.phone_number.PhoneNumberInstance