feat(dart): add example

Author: techouse

clients/algoliasearch-client-dart/packages/chopper_requester/example/example.dart

@@ -0,0 +1,40 @@
+import 'package:algolia_chopper_requester/algolia_chopper_requester.dart';
+import 'package:algolia_client_core/algolia_client_core.dart';
+
+void main() async {
+  const String appId = 'latency';
+  const String apiKey = '6be0576ff61c053d5f9a3225e2a90f76';
+
+  // Creating an instance of the RetryStrategy with necessary parameters.
+  // This will retry the failed requests with a backoff strategy.
+  final requester = RetryStrategy.create(
+    segment: AgentSegment(value: 'CustomClient'),
+    appId: appId,
+    apiKey: apiKey,
+    defaultHosts: () => [
+      Host(url: 'latency-dsn.algolia.net'),
+      Host(url: 'latency-1.algolianet.com'),
+    ],
+    options: ClientOptions(
+      requester: ChopperRequester(
+        appId: appId,
+        apiKey: apiKey,
+      ),
+    ),
+  );
+
+  // Executing a GET request on the '/1/indexes/instant_search' endpoint.
+  final response = await requester.execute(
+    request: ApiRequest(
+      method: RequestMethod.get,
+      path: '/1/indexes/instant_search',
+      queryParams: {'query': 'a', 'hitsPerPage': '5'},
+    ),
+  );
+
+  // Printing json response.
+  print(response);
+
+  // Dispose of the requester to clean up its resources.
+  requester.dispose();
+}