This is not handled well
`DATA columns TYPE STANDARD TABLE OF if_data_preview=>ty_column.
columns = VALUE #( ( metadata = VALUE #( name = MANDT
type = C
description = MANDT )
dataset = VALUE #( ( |200| ) ( |200| ) ) ) ).`
Current result is
COLUMNS = VALUE #(
(
INDEX = '1 '
METADATA = Structure: deep
DATASET = Standard Table[2x1(8)]
)
).