def combine(self, chart=None):
        if chart is None:
            return

        if not chart.is_secondary:
            warn('Charts combined with Bar charts must be on a secondary axis')

        self.combined = chart

    ###########################################################################
    #
    # Private API.
    #
    ###########################################################################
Record an activity that could trigger a lint and enqueue a desire to lint.
dataset/ETHPy150Open jmcnamara/XlsxWriter/xlsxwriter/chart_bar.py/ChartBar.combine--crossover with--dataset/ETHPy150Open SublimeLinter/SublimeLinter3/sublimelinter.py/SublimeLinter.hit