Check HS classification parameter
Usage
check_clCode(commodity_classification)
Arguments
- commodity_classification
A character string specifying the HS classification code. Must be "HS".
Value
A character string specifying the HS classification code.
Examples
if (FALSE) { # interactive()
untrader:::check_clCode("HS") # returns "HS"
untrader:::check_clCode("ISIC") # throws an error because "ISIC" is not a valid classification code
}