Update agentspace_eval.ipynb (#2101)

Author: larchiu

search/agentspace/agentspace_eval.ipynb

@@ -525,7 +525,7 @@
         "@lru_cache(maxsize=None)\n",
         "def get_answer_results(query):\n",
         "    response = requests.post(\n",
-        "        f\"https://{base_discovery_engine_domain}/v1alpha/projects/{auth_project_id}/locations/global/collections/default_collection/engines/{engine_id}/servingConfigs/default_search:answer\",\n",
+        "        f\"https://{base_discovery_engine_domain}/v1alpha/projects/{auth_project_id}/locations/{location}/collections/default_collection/engines/{engine_id}/servingConfigs/default_search:answer\",\n",
         "        headers={\n",
         "            \"Content-Type\": \"application/json\",\n",
         "            \"Authorization\": \"Bearer \" + creds.token,\n",