Define model config variables in separate cells to avoid calling OpenAI unnecessarily

Author: gustavocidornelas

examples/llms/langchain/question-answering/question-answering.ipynb

@@ -126,8 +126,16 @@
     "system_message_prompt = SystemMessagePromptTemplate.from_template(template)\n",
     "\n",
     "human_template = \"{question}\"\n",
-    "human_message_prompt = HumanMessagePromptTemplate.from_template(human_template)\n",
-    "\n",
+    "human_message_prompt = HumanMessagePromptTemplate.from_template(human_template)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "bbd06c94",
+   "metadata": {},
+   "outputs": [],
+   "source": [
     "chat_prompt = ChatPromptTemplate.from_messages([system_message_prompt, human_message_prompt])"
    ]
   },
@@ -485,6 +493,20 @@
     "Let's create a `model_config` for our model:"
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "1053c839",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# Useful variable that will also go into our config\n",
+    "template = \"\"\"You are a helpful assistant who answers user's questions about Python.\n",
+    "A user will pass in a question, and you should answer it very objectively.\n",
+    "Use AT MOST 5 sentences. If you need more than 5 sentences to answer, say that the\n",
+    "user should make their question more objective.\"\"\""
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -498,7 +520,7 @@
     "    \"modelType\": \"shell\",\n",
     "    \"prompt\": [ # Optionally log the prompt, following the same format as OpenAI\n",
     "        {\"role\": \"system\", \"content\": template}, \n",
-    "        {\"role\": \"user\", \"content\": human_template}\n",
+    "        {\"role\": \"user\", \"content\": \"{question}\"}\n",
     "    ], \n",
     "    \"metadata\": {  # Can add anything here, as long as it is a dict\n",
     "        \"output_parser\": None,\n",