REFERENCE(IP_APPL_LOG) TYPE REF TO /AIN/CL_APP_LOG
REFERENCE(IREF_LOG) TYPE REF TO /AIN/CL_APP_LOG OPTIONAL
REFERENCE(EREF_LOG) TYPE REF TO /AIN/CL_APP_LOG
REFERENCE(IO_LOG) TYPE REF TO /AIN/CL_APP_LOG OPTIONAL