#### tooltip

`markdown:docs/common/tooltip.en.md`

#### label

`markdown:docs/common/label.en.md`

#### axis

Same for xAxis and yAxis. **Note**: Since `DualAxes` or `BidirectionalBar` has double Y-axes, the yAxis is a object which takes the field in yField as the 'key'.

`markdown:docs/common/axis.en.md`

#### legend

`markdown:docs/common/legend.en.md`

#### annotations

`markdown:docs/common/annotations.en.md`
