Add ruff

.github/workflows/ruff.yml

@@ -0,0 +1,8 @@
+name: Ruff
+on: [push, pull_request]
+jobs:
+  ruff:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: chartboost/ruff-action@v1

tippisell_api/__init__.py

@@ -1,3 +1,2 @@
-from tippisell_api.client import Client
-
-from . import exceptions
+from tippisell_api.client import Client  # noqa: F401
+from . import exceptions  # noqa: F401

tippisell_api/client.py

@@ -1,7 +1,9 @@
+import io
 import http
 import typing
 import aiohttp
 import decimal
+import json
 
 from tippisell_api import exceptions, methods, models