Method is_optional

libs/indexer/drules_struct.pb.h:2591–2594

  is_optional_ = false;
}
inline bool CaptionDefProto::is_optional() const {
  // @@protoc_insertion_point(field_get:CaptionDefProto.is_optional)
  return is_optional_;
}
inline void CaptionDefProto::set_is_optional(bool value) {
  
  is_optional_ = value;