diff --git a/docs/docs/use_cases/graph/graph_gremlin_cosmosdb_qa.ipynb b/docs/docs/use_cases/graph/graph_gremlin_cosmosdb_qa.ipynb
index ae05928466750..3ae5d2f2d8ba4 100644
--- a/docs/docs/use_cases/graph/graph_gremlin_cosmosdb_qa.ipynb
+++ b/docs/docs/use_cases/graph/graph_gremlin_cosmosdb_qa.ipynb
@@ -27,12 +27,12 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "from langchain_community.graphs import GremlinGraph\n",
+    "import nest_asyncio\n",
     "from langchain.chains.graph_qa import GremlinQAChain\n",
-    "from langchain_openai import AzureChatOpenAI\n",
     "from langchain.schema import Document\n",
+    "from langchain_community.graphs import GremlinGraph\n",
     "from langchain_community.graphs.graph_document import GraphDocument, Node, Relationship\n",
-    "import nest_asyncio"
+    "from langchain_openai import AzureChatOpenAI"
    ]
   },
   {
@@ -48,9 +48,9 @@
     "cosmosdb_access_Key = \"longstring==\"\n",
     "\n",
     "graph = GremlinGraph(\n",
-    "    url=f\"=wss://{cosmosdb_name}.gremlin.cosmos.azure.com:443/\", \n",
-    "    username=f\"/dbs/{cosmosdb_db_id}/colls/{cosmosdb_db_graph_id}\", \n",
-    "    password=cosmosdb_access_Key\n",
+    "    url=f\"=wss://{cosmosdb_name}.gremlin.cosmos.azure.com:443/\",\n",
+    "    username=f\"/dbs/{cosmosdb_db_id}/colls/{cosmosdb_db_graph_id}\",\n",
+    "    password=cosmosdb_access_Key,\n",
     ")"
    ]
   },
@@ -75,21 +75,51 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "source_doc = Document(page_content=\"Matrix is a movie where Keanu Reeves, Laurence Fishburne and Carrie-Anne Moss acted.\")\n",
-    "movie = Node(id=\"The Matrix\", properties={\"label\":\"movie\", \"title\": \"The Matrix\"})\n",
-    "actor1 = Node(id=\"Keanu Reeves\", properties={\"label\":\"actor\", \"name\": \"Keanu Reeves\"})\n",
-    "actor2 = Node(id=\"Laurence Fishburne\", properties={\"label\":\"actor\", \"name\": \"Laurence Fishburne\"})\n",
-    "actor3 = Node(id=\"Carrie-Anne Moss\", properties={\"label\":\"actor\", \"name\": \"Carrie-Anne Moss\"})\n",
-    "rel1 = Relationship(id=5, type=\"ActedIn\",  source=actor1, target=movie, properties={\"label\":\"ActedIn\"})\n",
-    "rel2 = Relationship(id=6, type=\"ActedIn\", source=actor2, target=movie, properties={\"label\":\"ActedIn\"})\n",
-    "rel3 = Relationship(id=7, type=\"ActedIn\", source=actor3, target=movie, properties={\"label\":\"ActedIn\"})\n",
-    "rel4 = Relationship(id=8, type=\"Starring\",  source=movie, target=actor1, properties={\"label\":\"Strarring\"})\n",
-    "rel5 = Relationship(id=9, type=\"Starring\", source=movie, target=actor2, properties={\"label\":\"Strarring\"})\n",
-    "rel6 = Relationship(id=10, type=\"Straring\", source=movie, target=actor3, properties={\"label\":\"Strarring\"})\n",
+    "source_doc = Document(\n",
+    "    page_content=\"Matrix is a movie where Keanu Reeves, Laurence Fishburne and Carrie-Anne Moss acted.\"\n",
+    ")\n",
+    "movie = Node(id=\"The Matrix\", properties={\"label\": \"movie\", \"title\": \"The Matrix\"})\n",
+    "actor1 = Node(id=\"Keanu Reeves\", properties={\"label\": \"actor\", \"name\": \"Keanu Reeves\"})\n",
+    "actor2 = Node(\n",
+    "    id=\"Laurence Fishburne\", properties={\"label\": \"actor\", \"name\": \"Laurence Fishburne\"}\n",
+    ")\n",
+    "actor3 = Node(\n",
+    "    id=\"Carrie-Anne Moss\", properties={\"label\": \"actor\", \"name\": \"Carrie-Anne Moss\"}\n",
+    ")\n",
+    "rel1 = Relationship(\n",
+    "    id=5, type=\"ActedIn\", source=actor1, target=movie, properties={\"label\": \"ActedIn\"}\n",
+    ")\n",
+    "rel2 = Relationship(\n",
+    "    id=6, type=\"ActedIn\", source=actor2, target=movie, properties={\"label\": \"ActedIn\"}\n",
+    ")\n",
+    "rel3 = Relationship(\n",
+    "    id=7, type=\"ActedIn\", source=actor3, target=movie, properties={\"label\": \"ActedIn\"}\n",
+    ")\n",
+    "rel4 = Relationship(\n",
+    "    id=8,\n",
+    "    type=\"Starring\",\n",
+    "    source=movie,\n",
+    "    target=actor1,\n",
+    "    properties={\"label\": \"Strarring\"},\n",
+    ")\n",
+    "rel5 = Relationship(\n",
+    "    id=9,\n",
+    "    type=\"Starring\",\n",
+    "    source=movie,\n",
+    "    target=actor2,\n",
+    "    properties={\"label\": \"Strarring\"},\n",
+    ")\n",
+    "rel6 = Relationship(\n",
+    "    id=10,\n",
+    "    type=\"Straring\",\n",
+    "    source=movie,\n",
+    "    target=actor3,\n",
+    "    properties={\"label\": \"Strarring\"},\n",
+    ")\n",
     "graph_doc = GraphDocument(\n",
     "    nodes=[movie, actor1, actor2, actor3],\n",
     "    relationships=[rel1, rel2, rel3, rel4, rel5, rel6],\n",
-    "    source=source_doc\n",
+    "    source=source_doc,\n",
     ")"
    ]
   },
@@ -105,7 +135,7 @@
     "nest_asyncio.apply()\n",
     "\n",
     "# Add the document to the CosmosDB graph.\n",
-    "graph.add_graph_documents([graph_doc])   "
+    "graph.add_graph_documents([graph_doc])"
    ]
   },
   {
@@ -154,13 +184,13 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "\n",
     "chain = GremlinQAChain.from_llm(\n",
-    "    AzureChatOpenAI(temperature=0,\n",
-    "                    azure_deployment=\"gpt-4-turbo\",\n",
-    "                    ), \n",
-    "    graph=graph, \n",
-    "    verbose=True\n",
+    "    AzureChatOpenAI(\n",
+    "        temperature=0,\n",
+    "        azure_deployment=\"gpt-4-turbo\",\n",
+    "    ),\n",
+    "    graph=graph,\n",
+    "    verbose=True,\n",
     ")"
    ]
   },