fix linting issues

Author: yberber-sap

docs/docs/integrations/vectorstores/sap_hanavector.ipynb

@@ -53,6 +53,7 @@
    "outputs": [],
    "source": [
     "import os\n",
+    "\n",
     "from dotenv import load_dotenv\n",
     "from hdbcli import dbapi\n",
     "\n",
@@ -103,6 +104,7 @@
     "# | output: false\n",
     "# | echo: false\n",
     "from langchain_openai import OpenAIEmbeddings\n",
+    "\n",
     "embeddings = OpenAIEmbeddings(model=\"text-embedding-3-large\")"
    ]
   },
@@ -964,12 +966,12 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "from langchain_openai import ChatOpenAI\n",
-    "from langchain.memory import ConversationBufferMemory\n",
     "from langchain.chains import ConversationalRetrievalChain\n",
+    "from langchain.memory import ConversationBufferMemory\n",
+    "from langchain_openai import ChatOpenAI\n",
     "\n",
     "llm = ChatOpenAI(model=\"gpt-3.5-turbo\")\n",
-    "What happened in the coal mine explosion in Asturias, Spain?memory = ConversationBufferMemory(\n",
+    "memory = ConversationBufferMemory(\n",
     "    memory_key=\"chat_history\", output_key=\"answer\", return_messages=True\n",
     ")\n",
     "qa_chain = ConversationalRetrievalChain.from_llm(\n",

libs/community/langchain_community/query_constructors/hanavector.py

@@ -16,11 +16,11 @@
     since="0.1.0",
     removal="1.0",
     message=(
-            "This class is deprecated and will be removed in a future version. "
-            "Please use query_constructors.HanaTranslator from the "
-            "langchain_hana package instead. "
-            "See https://github.com/SAP/langchain-integration-for-sap-hana-cloud "
-            "for details."
+        "This class is deprecated and will be removed in a future version. "
+        "Please use query_constructors.HanaTranslator from the "
+        "langchain_hana package instead. "
+        "See https://github.com/SAP/langchain-integration-for-sap-hana-cloud "
+        "for details."
     ),
     alternative="from langchain_hana.query_constructors import HanaTranslator;",
     pending=False,

libs/community/langchain_community/vectorstores/hanavector.py

@@ -71,10 +71,10 @@
     since="0.1.0",
     removal="1.0",
     message=(
-            "This class is deprecated and will be removed in a future version. "
-            "Please use HanaDB from the langchain_hana package instead. "
-            "See https://github.com/SAP/langchain-integration-for-sap-hana-cloud "
-            "for details."
+        "This class is deprecated and will be removed in a future version. "
+        "Please use HanaDB from the langchain_hana package instead. "
+        "See https://github.com/SAP/langchain-integration-for-sap-hana-cloud "
+        "for details."
     ),
     alternative="from langchain_hana import HanaDB;",
     pending=False,