code: func (po *PrintOperation) SetJobName(name string) {
  	cstr := C.CString(name)
  	defer C.free(unsafe.Pointer(cstr))
  	C.gtk_print_operation_set_job_name(po.native(), (*C.gchar)(cstr))
  }
docs: // SetJobName() is a wrapper around gtk_print_operation_set_job_name().