'Initialize the AssignedAddOnContext
:param Version version: Version that contains the resource
:param account_sid: The account_sid
:param resource_sid: The resource_sid
:param sid: The unique Installed Add-on Sid
:returns: twilio.rest.api.v2010.account.incoming_phone_number.assigned_add_on.AssignedAddOnContext
:rtype: twilio.rest.api.v2010.account.incoming_phone_number.assigned_add_on.AssignedAddOnContext'

def __init__(self, version, account_sid, resource_sid, sid):

    super(AssignedAddOnContext, self).__init__(version)
    self._solution = {'account_sid': account_sid, 'resource_sid': resource_sid, 'sid': sid}
    self._uri = '/Accounts/{account_sid}/IncomingPhoneNumbers/{resource_sid}/AssignedAddOns/{sid}.json'.format(**self._solution)
    self._extensions = None
