'Find the screplication object for the volume on the dest backend.
:param scvolume:
:param destssn:
:return:'

def get_screplication(self, scvolume, destssn):

    LOG.debug('get_screplication')
    r = self.client.get(('StorageCenter/ScVolume/%s/ReplicationSourceList' % self._get_id(scvolume)))
    if self._check_result(r):
        replications = self._get_json(r)
        for replication in replications:
            LOG.debug(replication)
            LOG.debug('looking    for    %s', destssn)
            if (replication.get('destinationScSerialNumber') == destssn):
                return replication
    LOG.warning('Unable    to    locate    replication    %(vol)s    to    %(ssn)s', {'vol': scvolume.get('name'), 'ssn': destssn})
    return None
