axes.key[type=' grouped-category']

type 'grouped-category': Axis type identifier.
paddingInner Ratio: The size of the gap between the categories as a proportion, between 0 and 1. This value is a fraction of the “step”, which is the interval between the start of a band and the start of the next band.
groupPaddingInner Ratio: This property is for grouped column/bar series plotted on a category axis. It is a proportion between 0 and 1 which determines the size of the gap between the bars or columns within a single group along the axis.
depthOptions AgGroupedCategoryDepthOptions[]: An array of depth options, starting from the leafs.
tick AgGroupedCategoryAxisTickOptions: Configuration for the axis ticks.
bandHighlight AgBandHighlightOptions: Configuration for the axis band highlight.
maxThicknessRatio Ratio default: 0.5: The maximum thickness of the axis, as a ratio of the chart's width or height depending on axis direction. Used to prevent the axis from growing too large when labels or content are oversized.
position AgCartesianAxisPosition: The position on the chart where the axis should be rendered.
crossAt AgCartesianAxisCrossAt: Value on the first perpendicular axis' domain where this axis should intersect.
crossLines AgCartesianCrossLineOptions[]: Add cross-lines or regions corresponding to data values.
thickness PixelSize: Sets the axis thickness regardless of its content.
title AgCartesianAxisCaptionOptions: Configuration for the title shown next to the axis.
crosshair AgCrosshairOptions: Configuration for the axis crosshair.
context ContextDefault: Context object to use in callbacks.
reverse boolean: Reverse the axis scale domain if `true`.
line AgAxisLineOptions: Configuration for the axis line.
gridLine AgAxisGridLineOptions: Configuration for the axis grid lines.
label AgGroupedCategoryAxisLabelOptions: Configuration for the axis labels, shown next to the ticks.
interval AgAxisBaseIntervalOptions: Configuration for the axis ticks interval.