diff --git a/plugins/module_utils/module.py b/plugins/module_utils/module.py
index 6d1615b..16eae83 100644
--- a/plugins/module_utils/module.py
+++ b/plugins/module_utils/module.py
@@ -80,9 +80,7 @@ class AnsibleModule(object):
             if after_header is not None:
                 diff["after_header"] = after_header
         else:
-            raise TypeError(
-                "only diff or before and after can be set, not both of them"
-            )
+            raise TypeError("only diff or before and after can be set, not both of them")
         self.result["diff"].append(diff)
 
     def get(self, key: str, default: T = None) -> T:
@@ -265,14 +263,10 @@ class SystemdUnitModule(AnsibleModule):
     def check(self):
         self.unitfile_gen()
         if not self.unitfile.exists():
-            self.diff(
-                before="", after=self.unit(), before_header=self.unitfile.as_posix()
-            )
+            self.diff(before="", after=self.unit(), before_header=self.unitfile.as_posix())
             self.changed = True
         else:
-            if self.module.sha256(self.unitfile.as_posix()) != self.module.sha256(
-                (self.tmpdir / "newunit").as_posix()
-            ):
+            if self.module.sha256(self.unitfile.as_posix()) != self.module.sha256((self.tmpdir / "newunit").as_posix()):
                 self.changed = True
                 self.diff(
                     before=self.unitfile.read_text(),