class_docstr: <<< Gauge >>>
  
  The gauge displays a single key business measure.
code: def add(
      self,
      series_name: str,
      data_pair: types.Sequence,
      *,
      min_: types.Numeric = 0,
      max_: types.Numeric = 100,
      split_number: types.Numeric = 10,
      center: types.Sequence = None,
      radius: types.Union[types.Numeric, str] = "75%",
      start_angle: types.Numeric = 225,
      end_angle: types.Numeric = -45,
      is_clock_wise: bool = True,
      title_label_opts: types.GaugeTitle = opts.GaugeTitleOpts(
          offset_center=["0%", "20%"],
      ),
      detail_label_opts: types.GaugeDetail = opts.GaugeDetailOpts(
          formatter="{value}%",
          offset_center=["0%", "40%"],
      ),
      progress: types.GaugeProgress = opts.GaugeProgressOpts(),
      pointer: types.GaugePointer = opts.GaugePointerOpts(),
      anchor: types.GaugeAnchor = opts.GaugeAnchorOpts(),
      tooltip_opts: types.Tooltip = None,
      axisline_opts: types.AxisLine = None,
      axistick_opts: types.AxisTick = None,
      axislabel_opts: types.AxisLabel = None,
      itemstyle_opts: types.ItemStyle = None,
  ):
      if center is None:
          center = ["50%", "50%"]
  
      self._append_legend(series_name)
      self.options.get("series").append(
          {
              "type": ChartType.GAUGE,
              "title": title_label_opts,
              "detail": detail_label_opts,
              "name": series_name,
              "min": min_,
              "max": max_,
              "splitNumber": split_number,
              "center": center,
              "radius": radius,
              "startAngle": start_angle,
              "endAngle": end_angle,
              "clockwise": is_clock_wise,
              "data": [{"name": n, "value": v} for n, v in data_pair],
              "tooltip": tooltip_opts,
              "axisLine": axisline_opts,
              "axisTick": axistick_opts,
              "axisLabel": axislabel_opts,
              "progress": progress,
              "anchor": anchor,
              "pointer": pointer,
              "itemStyle": itemstyle_opts,
          }
      )
      return self
  
imports: from ...None import options
  from ...None import types
  from ...charts.chart import Chart
  from ...globals import ChartType
label_desc: Use image node_id 1 for calling the Gauge obj's underlying member method code with example usage: obj.add(series_name, data_pair) and returns: self