public async Task <InvoiceFull> Get(InvoiceFull.FilenameFormat key) => await store.Get(key.ToString());
public async Task Delete(InvoiceFull.FilenameFormat key) => await store.Delete(key.ToString());
public async Task <InvoiceFull> Get(InvoiceFull.FilenameFormat key) => await store.Get(key.ToString());
public async Task Delete(InvoiceFull.FilenameFormat key) => await store.Delete(key.ToString());