Function module

HI,

what is the use of function module 'CUOV_GET_FUNCTION_ARGUMENT'.

CALL FUNCTION 'CUOV_GET_FUNCTION_ARGUMENT'

EXPORTING

ARGUMENT = 'LENGTH_FT'

IMPORTING

• VTYPE =

SYM_VAL = L_LENGTH_FT

• NUM_VAL =

• IO_FLAG =

TABLES

QUERY = WS_QUERY

• EXCEPTIONS

• ARG_NOT_FOUND = 1

• OTHERS = 2

.

IF SY-SUBRC <> 0.

• MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO

• WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.

ENDIF.

i run this function module it is not asking any input and output parameters?what input parameters i will give?

Thanks & Regards,

sairam