def __init__(self, version):
super(PhoneNumberList, self).__init__(version)<EOL>self._solution = {}<EOL>self._countries = None<EOL>
Initialize the PhoneNumberList

:param Version version: Version that contains the resource

:returns: twilio.rest.pricing.v1.phone_number.PhoneNumberList
:rtype: twilio.rest.pricing.v1.phone_number.PhoneNumberList