def __init__(self, version, installed_add_on_sid, sid):
super(InstalledAddOnExtensionContext, self).__init__(version)<EOL>self._solution = {'<STR_LIT>': installed_add_on_sid, '<STR_LIT>': sid, }<EOL>self._uri = '<STR_LIT>'.format(**self._solution)<EOL>
Initialize the InstalledAddOnExtensionContext

:param Version version: Version that contains the resource
:param installed_add_on_sid: The installed_add_on_sid
:param sid: The unique Extension Sid

:returns: twilio.rest.preview.marketplace.installed_add_on.installed_add_on_extension.InstalledAddOnExtensionContext
:rtype: twilio.rest.preview.marketplace.installed_add_on.installed_add_on_extension.InstalledAddOnExtensionContext