def __init__(self, domain):
super(Marketplace, self).__init__(domain)<EOL>self.version = '<STR_LIT>'<EOL>self._installed_add_ons = None<EOL>self._available_add_ons = None<EOL>
Initialize the Marketplace version of Preview

:returns: Marketplace version of Preview
:rtype: twilio.rest.preview.marketplace.Marketplace.Marketplace