text: from ... import options as opts
  from ... import types
  from ...charts.chart import Chart
  from ...globals import ChartType
  
  
  class Liquid(Chart):
      """
      <<< Liquid >>>
  
      The liquid chart is mainly used to highlight the percentage of data.
      """
  
      def __init__(self, init_opts: types.Init = opts.InitOpts()):
          super().__init__(init_opts=init_opts)
          self.js_dependencies.add("echarts-liquidfill")
  
      def add(
          self,
          series_name: str,
          data: types.Sequence,
          *,
          shape: str = "circle",
          color: types.Optional[types.Sequence[str]] = None,
          background_color: types.Union[str, dict, None] = None,
          is_animation: bool = True,
          is_outline_show: bool = True,
          outline_border_distance: types.Numeric = 8,
          outline_itemstyle_opts: types.ItemStyle = None,
          center: types.Sequence = None,
          tooltip_opts: types.Tooltip = None,
          label_opts: types.Label = opts.LabelOpts(font_size=50, position="inside"),
      ):
          _animation_dur, _animation_dur_update = 2000, 1000
          if not is_animation:
              _animation_dur, _animation_dur_update = 0, 0
  
          color = color or ["#294D99", "#156ACF", "#1598ED", "#45BDFF"]
  
          self.options.get("series").append(
              {
                  "type": ChartType.LIQUID,
                  "name": series_name,
                  "data": data,
                  "waveAnimation": is_animation,
                  "animationDuration": _animation_dur,
                  "animationDurationUpdate": _animation_dur_update,
                  "color": color,
                  "shape": shape,
                  "backgroundStyle": {"color": background_color},
                  "outline": {
                      "show": is_outline_show,
                      "borderDistance": outline_border_distance,
                      "itemStyle": outline_itemstyle_opts,
                  },
                  "tooltip": tooltip_opts,
                  "label": label_opts,
                  "center": center,
              }
          )
          return self
  