upsertMany method
Implementation
Future<Iterable<SecretEntry>> upsertMany(
Map<SecretKey, SecretValue> entries) async =>
(await _rpcManager.post(
'/secret/upsert',
SetSecretRequest(
entries: entries.entries.map((e) =>
SetSecretRequestEntry(key: e.key, value: e.value)))))
.map((e) => SecretEntry.fromJson(e));