question: returns the result of interpreting the object as an instance of ` address ' . this implementation returns null ; returning a non-null result will terminate the switch . concode_field_sep IdbagPackage modelPackage concode_field_sep T doSwitch concode_elem_sep T doSwitch concode_elem_sep T doSwitch concode_elem_sep T defaultCase concode_elem_sep T caseUser
target: T function ( Address arg0 ) { return null ; }