                  series: {
                        type: 'scatter',
                        id: 'main',
                        datasetId: 'raw_cluster_centers_dataset',
                        symbolSize: 50,
                        encode: {
                            x: 'CLUSTER_CENTER_PRICE',
                            y: 'CLUSTER_CENTER_COUNT',
                            itemGroupId: 'CLUSTER_IDX',
                            tooltip: ['CLUSTER_CENTER_PRICE', 'CLUSTER_CENTER_COUNT']
               