diff --git a/lnbits/extensions/cashu/__init__.py b/lnbits/extensions/cashu/__init__.py
index 440be092..7944e658 100644
--- a/lnbits/extensions/cashu/__init__.py
+++ b/lnbits/extensions/cashu/__init__.py
@@ -34,7 +34,7 @@ def cashu_renderer():
     return template_renderer(["lnbits/extensions/cashu/templates"])
 
 
-from .tasks import wait_for_paid_invoices, startup_cashu_mint
+from .tasks import startup_cashu_mint, wait_for_paid_invoices
 from .views import *  # noqa
 from .views_api import *  # noqa
 
diff --git a/lnbits/extensions/cashu/crud.py b/lnbits/extensions/cashu/crud.py
index 7ecf9b6a..cbeedc12 100644
--- a/lnbits/extensions/cashu/crud.py
+++ b/lnbits/extensions/cashu/crud.py
@@ -2,21 +2,19 @@ import os
 import random
 import time
 from binascii import hexlify, unhexlify
-from typing import List, Optional, Union, Any
+from typing import Any, List, Optional, Union
 
+from cashu.core.base import MintKeyset
 from embit import bip32, bip39, ec, script
 from embit.networks import NETWORKS
 from loguru import logger
 
+from lnbits.db import Connection, Database
 from lnbits.helpers import urlsafe_short_hash
 
 from . import db
-
 from .models import Cashu, Pegs, Promises, Proof
 
-from cashu.core.base import MintKeyset
-from lnbits.db import Database, Connection
-
 
 async def create_cashu(
     cashu_id: str, keyset_id: str, wallet_id: str, data: Cashu
diff --git a/lnbits/extensions/cashu/tasks.py b/lnbits/extensions/cashu/tasks.py
index dddd1ef1..40b521f0 100644
--- a/lnbits/extensions/cashu/tasks.py
+++ b/lnbits/extensions/cashu/tasks.py
@@ -1,14 +1,14 @@
 import asyncio
 import json
 
+from cashu.core.migrations import migrate_databases
+from cashu.mint import migrations
+
 from lnbits.core.models import Payment
 from lnbits.tasks import register_invoice_listener
 
-from .crud import get_cashu
-
-from cashu.mint import migrations
-from cashu.core.migrations import migrate_databases
 from . import db, ledger
+from .crud import get_cashu
 
 
 async def startup_cashu_mint():
diff --git a/lnbits/extensions/cashu/templates/cashu/_cashu.html b/lnbits/extensions/cashu/templates/cashu/_cashu.html
index 03457ac7..0c7c4338 100644
--- a/lnbits/extensions/cashu/templates/cashu/_cashu.html
+++ b/lnbits/extensions/cashu/templates/cashu/_cashu.html
@@ -7,7 +7,9 @@
       </p>
       <small
         >Created by
-        <a href="https://github.com/arcbtc" target="_blank">arcbtc</a>, <a href="https://github.com/motorina0" target="_blank">vlad</a>, <a href="https://github.com/calle" target="_blank">calle</a>.</small
+        <a href="https://github.com/arcbtc" target="_blank">arcbtc</a>,
+        <a href="https://github.com/motorina0" target="_blank">vlad</a>,
+        <a href="https://github.com/calle" target="_blank">calle</a>.</small
       >
     </q-card-section>
   </q-card>
diff --git a/lnbits/extensions/cashu/views_api.py b/lnbits/extensions/cashu/views_api.py
index b271bccc..28857663 100644
--- a/lnbits/extensions/cashu/views_api.py
+++ b/lnbits/extensions/cashu/views_api.py
@@ -1,61 +1,51 @@
 import json
-from http import HTTPStatus
-from typing import Union
 import math
+from http import HTTPStatus
 from typing import Dict, List, Union
 
 import httpx
-from fastapi import Query
-from fastapi.params import Depends
-from lnurl import decode as decode_lnurl
-from loguru import logger
-from secp256k1 import PublicKey
-from starlette.exceptions import HTTPException
-from lnbits import bolt11
-
-from lnbits.core.crud import get_user
-from lnbits.core.services import (
-    check_transaction_status,
-    create_invoice,
-    fee_reserve,
-    pay_invoice,
-)
-
-from lnbits.core.views.api import api_payment
-from lnbits.decorators import WalletTypeInfo, get_key_type, require_admin_key
-from lnbits.wallets.base import PaymentStatus
-from lnbits.helpers import urlsafe_short_hash
-from lnbits.core.crud import check_internal
-
-# --------- extension imports
-
-from . import cashu_ext
-from .crud import (
-    create_cashu,
-    delete_cashu,
-    get_cashu,
-    get_cashus,
-)
-
-from .models import Cashu
-
-from . import ledger
 
 # -------- cashu imports
 from cashu.core.base import (
-    Proof,
     BlindedSignature,
     CheckFeesRequest,
     CheckFeesResponse,
     CheckRequest,
     GetMeltResponse,
     GetMintResponse,
+    Invoice,
     MeltRequest,
     MintRequest,
     PostSplitResponse,
+    Proof,
     SplitRequest,
-    Invoice,
 )
+from fastapi import Query
+from fastapi.params import Depends
+from lnurl import decode as decode_lnurl
+from loguru import logger
+from secp256k1 import PublicKey
+from starlette.exceptions import HTTPException
+
+from lnbits import bolt11
+from lnbits.core.crud import check_internal, get_user
+from lnbits.core.services import (
+    check_transaction_status,
+    create_invoice,
+    fee_reserve,
+    pay_invoice,
+)
+from lnbits.core.views.api import api_payment
+from lnbits.decorators import WalletTypeInfo, get_key_type, require_admin_key
+from lnbits.helpers import urlsafe_short_hash
+from lnbits.wallets.base import PaymentStatus
+
+from . import cashu_ext, ledger
+from .crud import create_cashu, delete_cashu, get_cashu, get_cashus
+from .models import Cashu
+
+# --------- extension imports
+
 
 LIGHTNING = False