(self, row)
Given a row of report data represented as a dict this method should return the raw value for
        this column or None.
Given a row of report data represented as a dict this method should return the raw value for
        this column or None.
Given a row of report data represented as a dict this method should return the raw value for this column or None .
def get_raw_value(self, row):
        """
        Given a row of report data represented as a dict this method should return the raw value for
        this column or None.
        """
        raise NotImplementedError()
def get_raw_value ( self , row ) : raise NotImplementedError ( )