declare namespace Ext {
    export namespace draw {
        export interface SegmentTreeConfig {
        }

        export class SegmentTree extends Ext.Base  {
            public getAggregation(min?: number, max?: number, estStep?: number): object;
            public setData(dataX?: number, dataOpen?: number, dataHigh?: number, dataLow?: number, dataClose?: number): void;
        }
    }
}