Optionallogger: LoggerChecks if the mint supports creating invoices/offers with a description for the specified payment method.
The payment method to check ('bolt11' or 'bolt12')
Optionalunit: stringTrue if the mint supports description for the method, false otherwise.
Staticnormalize
Checks if the mint advertises the given (method, unit) pair for the given operation (
'mint'→ NUT-4,'melt'→ NUT-5).