saveProofs method
Implementation
@override
Future<void> saveProofs({
required List<CashuProof> proofs,
required String mintUrl,
}) {
if (cashuProofs.containsKey(mintUrl)) {
cashuProofs[mintUrl]!.addAll(proofs);
} else {
cashuProofs[mintUrl] = Set<CashuProof>.from(proofs);
}
return Future.value();
}