code: def prepare_bucket(self):
          
          self.logger.info('Deleting old bucket first')
          del_url = '{0}/buckets/{1}'.format(self.cluster_prefix, self.bucket)
          r = self._htsess.delete(del_url)
  
          try:
              r.raise_for_status()
          except:
              self.logger.exception("Couldn't delete bucket")
  
          cr_url = '{0}/buckets'.format(self.cluster_prefix)
          data = {
              'name': self.bucket,
              'ramQuotaMB': '{0}'.format(self.quota),
              'bucketType': 'couchbase',
              'authType': 'sasl',
              'saslPassword': '',
              'replicaNumber': '0'
          }
          r = self._htsess.post(cr_url, data)
          r.raise_for_status()
docs: Resets and creates the destination bucket (
              only called if --create is true).
          :return: