class ProcessingFeatures(object):
    """ This class provides all column names that are 
    added through preprocessing.
    """

    SOURCE_RUNNING = "source_running"
    SOURCE_STABILITY = "source_stable"
    CLUSTER = "optigrid_cluster"
    HT_VOLTAGE_BREAKDOWN = "ht_voltage_breakdown"
    HT_SPARKS_COUNTER = "ht_sparks_counter"
    DATAPOINT_DURATION = "datapoint_duration"
