'Add a series of bars to the chart.
points: List of y-values for the bars in this series
label:  Name of the series (used in the legend)
color:  Hex string, like \'00ff00\' for green
This is a convenience method which constructs & appends the DataSeries for
you.'

def AddBars(self, points, label=None, color=None):

    if ((label is not None) and util._IsColor(label)):
        warnings.warn('Your    code    may    be    broken!    Label    is    a    hex    triplet.        Maybe    it    is    a    color?    The    old    argument    order    (color    before    label)    is    deprecated.', DeprecationWarning, stacklevel=2)
    style = BarsStyle(color)
    series = common.DataSeries(points, label=label, style=style)
    self.data.append(series)
    return series
