How to set text labels in multibarhorizontalchart

[GraphGrailAi]

If i set 'x': xdata, where xdata is list of strings it throws an error "list index out of range"
chartdata = {
'x': xdata,
'name1': 'series 1', 'y1': ydata1, 'extra1': extra_serie,
'name2': 'series 2', 'y2': ydata2, 'extra2': extra_serie,
}

But if i set 'x': xdata to range(50) chart works, but instead text labels it shows numbers.
So how to set text labels in multibarhorizontalchart ?

[Silwest]

Bump