def METHOD_NAME(self):
    chart = ChartFactory.from_spec({
        "type": "multibar",
        "title": "Property Matches by clinic",
        "x_axis_column": "clinic",
        "y_axis_columns": [
            "property_no",
            {"column_id": "property_yes"}
        ],
    })
    self.assertEqual(MultibarChartSpec, type(chart))
    col_0, col_1 = chart.y_axis_columns
    self.assertTrue(isinstance(col_0, GraphDisplayColumn))
    self.assertEqual('property_no', col_0.display)
    self.assertEqual('property_no', col_0.column_id)
    self.assertTrue(isinstance(col_1, GraphDisplayColumn))
    self.assertEqual('property_yes', col_1.display)
    self.assertEqual('property_yes', col_1.column_id)