diff --git a/src/wallet/MoneroWallet.cpp b/src/wallet/MoneroWallet.cpp
index cd4b970..bc5331a 100644
--- a/src/wallet/MoneroWallet.cpp
+++ b/src/wallet/MoneroWallet.cpp
@@ -1145,7 +1145,7 @@ namespace monero {
       throw runtime_error("need to handle error filling response!");
     }
 
-    // build sent txs from results
+    // build sent txs from results  // TODO: break this into separate utility function
     vector<shared_ptr<MoneroTxWallet>> txs;
     auto txIdsIter = txIds.begin();
     auto txKeysIter = txKeys.begin();
@@ -1195,6 +1195,11 @@ namespace monero {
     return txs;
   }
 
+  vector<string> MoneroWallet::relayTxs(const vector<string>& txMetadatas) {
+    cout << "relayTxs()" << endl;
+    throw runtime_error("Not implemented");
+  }
+
   void MoneroWallet::save() {
     cout << "save()" << endl;
     save("", "");
diff --git a/src/wallet/MoneroWallet.h b/src/wallet/MoneroWallet.h
index 465fd32..055096d 100644
--- a/src/wallet/MoneroWallet.h
+++ b/src/wallet/MoneroWallet.h
@@ -748,15 +748,15 @@ namespace monero {
 //     * @return string is the id of the relayed tx
 //     */
 //    public string relayTx(string txMetadata);
-//
-//    /**
-//     * Relay transactions previously created without relaying.
-//     *
-//     * @param txMetadatas are transaction metadata previously created without relaying
-//     * @return List<string> are ids of the relayed txs
-//     */
-//    public List<string> relayTxs(Collection<string> txMetadatas);
-//
+
+    /**
+     * Relay transactions previously created without relaying.
+     *
+     * @param txMetadatas are transaction metadata previously created without relaying
+     * @return the ids of the relayed txs
+     */
+    vector<string> relayTxs(const vector<string>& txMetadatas);
+
 //    /**
 //     * Get a transaction note.
 //     *