How to get address field from Customer Record using User Event Script

let newRec = scriptContext.newRecord;

                let newAddressRec=newRec.getSublistSubrecord({

                    sublistId:”addressbook”,

                    fieldId:”addressbookaddress”,

                    line:0

                });

                let newAddress=newAddressRec.getValue({

                    fieldId:”addrtext”

                });

               log.debug(“address”,newAddress);