How do I call get_ddic_reference?

Hi,

I am trying to call the get_ddic_reference method. Here is my code:

TRY.

lr_column ?= lr_columns->get_column( columnname = 'CARRID' ).

CATCH cx_salv_not_found .

ENDTRY.

lr_column->get_ddic_reference( ).

It runs, but does not do anything. It seems obvious to me that there is nowhere to store the results of the "GET". how do I format this instruction "lr_column->get_ddic_reference( )" so that I capture the returned value(s)?

Thank you!

Andy