from qgis.core import QgsVectorLayer


class BarChartVectorLayer(QgsVectorLayer):
    """
    Subclass of QgsVectorLayer to project barchart onto.
    Store additional attributes :
        - max_visible (float)
        - column name (str)
        - aggregated (bool)
        - aggregate means (dict)
    """

    max_visible = None
    column_name = None
    aggregated = False
    means = None
