*add getResolvers method

src/index.ts

@@ -48,6 +48,17 @@ export async function clear() {
   await callModule(DNS_MODULE, "clear");
 }
 
+export async function getResolvers() {
+  await loadLibs();
+  const [resp, err] = await callModule(DNS_MODULE, "getResolvers");
+
+  if (err) {
+    throw new Error(err);
+  }
+
+  return resp;
+}
+
 export async function ready() {
   await loadLibs();
   const [resp, err] = await callModule(DNS_MODULE, "ready");