def __init__(self, domain):
super(V1, self).__init__(domain)<EOL>self.version = '<STR_LIT>'<EOL>self._messaging = None<EOL>self._phone_numbers = None<EOL>self._voice = None<EOL>
Initialize the V1 version of Pricing

:returns: V1 version of Pricing
:rtype: twilio.rest.pricing.v1.V1.V1