code: def parse_cluster(self, global_params, region, cluster):
          
          cluster_name = cluster.pop('CacheClusterId')
          cluster['name'] = cluster_name
          # Must fetch info about the subnet group to retrieve the VPC ID...
          if 'CacheSubnetGroupName' in cluster:
              subnet_group = api_clients[region].describe_cache_subnet_groups(CacheSubnetGroupName = cluster['CacheSubnetGroupName'])['CacheSubnetGroups'][0]
              vpc_id = subnet_group['VpcId']
          else:
              vpc_id = ec2_classic
              subnet_group = None
          manage_dictionary(self.vpcs, vpc_id, VPCConfig(self.vpc_resource_types))
          self.vpcs[vpc_id].clusters[cluster_name] = cluster
          if subnet_group:
              self.vpcs[vpc_id].subnet_groups[subnet_group['CacheSubnetGroupName']] = subnet_group
docs: Parse a single ElastiCache cluster
  
          :param global_params:           Parameters shared for all regions
          :param region:                  Name of the AWS region
          :param cluster:                 ElastiCache cluster