def fmt_row_header(self, columns, dimensions, **settings):
        """
        Format table header row.
        """
        row = list(map(lambda x: x['label'], columns))
        return self.fmt_row(columns, dimensions, row, **settings)
def fmt_row_header ( self , columns , dimensions , ** settings ) : row = list ( map ( lambda x : x [ 'label' ] , columns ) ) return self . fmt_row ( columns , dimensions , row , ** settings )
Format table header row.