[Docs] Add ruff linting to .ipynb files (#645)

examples/chatbots/information-gather-prompting.ipynb

@@ -33,10 +33,11 @@
    "metadata": {},
    "outputs": [],
    "source": [
+    "from typing import List\n",
+    "\n",
     "from langchain_core.messages import SystemMessage\n",
-    "from langchain_openai import ChatOpenAI\n",
     "from langchain_core.pydantic_v1 import BaseModel\n",
-    "from typing import List"
+    "from langchain_openai import ChatOpenAI"
    ]
   },
   {
@@ -97,7 +98,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "from langchain_core.messages import HumanMessage, AIMessage, ToolMessage\n",
+    "from langchain_core.messages import AIMessage, HumanMessage, ToolMessage\n",
     "\n",
     "# New system prompt\n",
     "prompt_system = \"\"\"Based on the following requirements, write a good prompt template:\n",
@@ -145,6 +146,7 @@
    "outputs": [],
    "source": [
     "from typing import Literal\n",
+    "\n",
     "from langgraph.graph import END\n",
     "\n",
     "\n",
@@ -174,8 +176,8 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "from langgraph.graph import MessageGraph, START\n",
     "from langgraph.checkpoint.sqlite import SqliteSaver\n",
+    "from langgraph.graph import START, MessageGraph\n",
     "\n",
     "memory = SqliteSaver.from_conn_string(\":memory:\")\n",
     "workflow = MessageGraph()\n",
@@ -215,7 +217,7 @@
     }
    ],
    "source": [
-    "from IPython.display import display, Image\n",
+    "from IPython.display import Image, display\n",
     "\n",
     "display(Image(graph.get_graph().draw_mermaid_png()))"
    ]
@@ -296,7 +298,6 @@
    "source": [
     "import uuid\n",
     "\n",
-    "\n",
     "config = {\"configurable\": {\"thread_id\": str(uuid.uuid4())}}\n",
     "while True:\n",
     "    user = input(\"User (q/Q to quit): \")\n",