download_kospi_master() and get_kospi_master_dataframe() functions are added. if you execute these two functions sequentially, you can obtain the KOSPI master data frame. and it contains a lot of informations. get_kospi_master() function combines these two functions.
download_kosdaq_master() and get_kosdaq_master_dataframe() functions are same as above. get_kosdaq_master() function combines these two functions.
kospi_master_columns and kosdaq_master_columns datasets contain English and Korean column names.
get_current_index() function is added. the index_code argument can be (KOSPI: "0001", KOSDAQ: "1001", KOSPI200: "2001")
usethis::edit_r_environ() for the environment variable checking error messages.A return value typo error of print_trading_env() function (livr -> live) is modified.
inherits(orders, "data.frame") condition is added to kis_cancel_all() function, because the get_orders() function inside of kis_cancel_all() function returns a list of error code if the class of return value is not a data.frame. So if get_orders() function returns a list of error code, the print_trading_env() function returns the same list of error code.