question: sets the value of the lastname property . concode_field_sep String firstName concode_elem_sep String lastName concode_elem_sep Address address concode_elem_sep Integer age concode_field_sep Integer getAge concode_elem_sep void setAddress concode_elem_sep void setFirstName concode_elem_sep Person withAddress concode_elem_sep Person withLastName concode_elem_sep Address getAddress concode_elem_sep Person withAge concode_elem_sep String getFirstName concode_elem_sep String getLastName concode_elem_sep Person withFirstName concode_elem_sep void setAge
target: void function ( String arg0 ) { this . lastName = arg0 ; }