diff --git a/rwx/ps/__init__.py b/rwx/ps/__init__.py
index 82c9640..32740d1 100644
--- a/rwx/ps/__init__.py
+++ b/rwx/ps/__init__.py
@@ -72,7 +72,9 @@ def run_lines(
     :rtype: list[str]
     """
     process = subprocess.run(
-        get_tuples_args(*items), capture_output=True, check=True
+        get_tuples_args(*items),
+        capture_output=True,
+        check=True,
     )
     string = process.stdout.decode(charset)
     return string.rstrip().splitlines()