diff --git a/backend/app/agent.py b/backend/app/agent.py
index d2695e79..512d85b2 100644
--- a/backend/app/agent.py
+++ b/backend/app/agent.py
@@ -27,11 +27,11 @@
     Arxiv,
     AvailableTools,
     Connery,
+    DallE,
     DDGSearch,
     PressReleases,
     PubMed,
     Retrieval,
-    DallE,
     SecFilings,
     Tavily,
     TavilyAnswer,
diff --git a/backend/app/tools.py b/backend/app/tools.py
index 81b24aa7..bb6e993c 100644
--- a/backend/app/tools.py
+++ b/backend/app/tools.py
@@ -5,14 +5,13 @@
 from langchain.pydantic_v1 import BaseModel, Field
 from langchain.tools.retriever import create_retriever_tool
 from langchain_community.agent_toolkits.connery import ConneryToolkit
-from langchain_core.tools import Tool
 from langchain_community.retrievers.kay import KayAiRetriever
 from langchain_community.retrievers.pubmed import PubMedRetriever
 from langchain_community.retrievers.wikipedia import WikipediaRetriever
 from langchain_community.retrievers.you import YouRetriever
-from langchain_community.tools.ddg_search.tool import DuckDuckGoSearchRun
 from langchain_community.tools.arxiv.tool import ArxivQueryRun
 from langchain_community.tools.connery import ConneryService
+from langchain_community.tools.ddg_search.tool import DuckDuckGoSearchRun
 from langchain_community.tools.tavily_search import (
     TavilyAnswer as _TavilyAnswer,
 )
@@ -20,12 +19,12 @@
     TavilySearchResults,
 )
 from langchain_community.utilities.arxiv import ArxivAPIWrapper
-from langchain_community.utilities.tavily_search import TavilySearchAPIWrapper
 from langchain_community.utilities.dalle_image_generator import DallEAPIWrapper
+from langchain_community.utilities.tavily_search import TavilySearchAPIWrapper
+from langchain_core.tools import Tool
 from langchain_robocorp import ActionServerToolkit
 from typing_extensions import TypedDict
 
-
 from app.upload import vstore
 
 
@@ -40,6 +39,7 @@ class ArxivInput(BaseModel):
 class PythonREPLInput(BaseModel):
     query: str = Field(description="python command to run")
 
+
 class DallEInput(BaseModel):
     query: str = Field(description="image description to generate image from")
 
@@ -60,8 +60,7 @@ class AvailableTools(str, Enum):
     DALL_E = "dall_e"
 
 
-class ToolConfig(TypedDict):
-    ...
+class ToolConfig(TypedDict): ...
 
 
 class BaseTool(BaseModel):
@@ -193,7 +192,10 @@ class Retrieval(BaseTool):
 class DallE(BaseTool):
     type: AvailableTools = Field(AvailableTools.DALL_E, const=True)
     name: str = Field("Generate Image (Dall-E)", const=True)
-    description: str = Field("Generates images from a text description using OpenAI's DALL-E model.", const=True)
+    description: str = Field(
+        "Generates images from a text description using OpenAI's DALL-E model.",
+        const=True,
+    )
 
 
 RETRIEVAL_DESCRIPTION = """Can be used to look up information that was uploaded to this assistant.
@@ -296,6 +298,7 @@ def _get_connery_actions():
     tools = connery_toolkit.get_tools()
     return tools
 
+
 @lru_cache(maxsize=1)
 def _get_dalle_tools():
     return Tool(
@@ -304,6 +307,7 @@ def _get_dalle_tools():
         "A wrapper around OpenAI DALL-E API. Useful for when you need to generate images from a text description. Input should be an image description.",
     )
 
+
 TOOLS = {
     AvailableTools.ACTION_SERVER: _get_action_server,
     AvailableTools.CONNERY: _get_connery_actions,