'Initialize the PhoneNumberInstance
:returns: twilio.rest.lookups.v1.phone_number.PhoneNumberInstance
:rtype: twilio.rest.lookups.v1.phone_number.PhoneNumberInstance'

def __init__(self, version, payload, phone_number=None):

    super(PhoneNumberInstance, self).__init__(version)
    self._properties = {'caller_name': payload['caller_name'], 'country_code': payload['country_code'], 'phone_number': payload['phone_number'], 'national_format': payload['national_format'], 'carrier': payload['carrier'], 'add_ons': payload['add_ons'], 'url': payload['url']}
    self._context = None
    self._solution = {'phone_number': (phone_number or self._properties['phone_number'])}
