render()返回值类型错误 #4853

export interface Chart extends Composition, Mark {
  render(): void;
  node(): HTMLElement;
  data: ValueAttribute<ChartProps['data'], Chart>;
  width: ValueAttribute<ChartProps['width'], Chart>;
  height: ValueAttribute<ChartProps['height'], Chart>;
  coordinate: ValueAttribute<ChartProps['coordinate'], Chart>;
  interaction: ObjectAttribute<ChartProps['interaction'], Chart>;
  key: ValueAttribute<ChartProps['key'], Chart>;
  transform: ArrayAttribute<ChartProps['transform'], Chart>;
  theme: ObjectAttribute<ChartProps['theme'], Chart>;
  title: ValueAttribute<ChartProps['title'], Chart>;
  scale: ObjectAttribute<ChartOptions['scale'], Chart>;
  axis: ObjectAttribute<ChartOptions['axis'], Chart>;
  legend: ObjectAttribute<ChartOptions['legend'], Chart>;
  style: ObjectAttribute<ChartOptions['style'], Chart>;
  labelTransform: ArrayAttribute<ChartOptions['labelTransform'], Chart>;
}

 render(): Promise<Chart> {
    if (!this._context.canvas) {
      // Init width and height.
      const {
        width = 640,
        height = 480,
        renderer,
        plugins,
        autoFit,
      } = this.options();
      const { width: adjustedWidth, height: adjustedHeight } = getChartSize(
        this._container,
        autoFit,
        width,
        height,
      );
      this.width(adjustedWidth);
      this.height(adjustedHeight);

      // Create canvas if it does not exist.
      this._context.canvas = Canvas(
        this._container,
        width,
        height,
        renderer,
        plugins,
      );
    }

    return new Promise((resolve, reject) => {
      try {
        reneder(this.options(), this._context, () => resolve(this), reject);
      } catch (e) {
        reject(e);
      }
    });
  }