void save_predictor(vw &all, std::string reg_name, size_t current_pass)
void parse_mask_regressor_args(vw &all, std::string feature_mask, std::vector< std::string > initial_regressors)
void initialize_regressor(vw &all)
void save_load_header(vw &all, io_buf &model_file, bool read, bool text, std::string &file_options, VW::config::options_i &options)
void read_regressor_file(vw &all, std::vector< std::string > files, io_buf &io_temp)
void finalize_regressor(vw &all, std::string reg_name)