diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0a1e39a852bfa5f7700cf5a59a57eb2cfe5b041c..add1c71cd46a0a13887e5648e9c42ae5be634d6b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,7 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added ###
 
 * Support for Python 3.12
-* The `linkahead` module now opts into type checking and supports mypy. 
+* The `linkahead` module now opts into type checking and supports mypy.
 
 ### Changed ###
 
diff --git a/src/linkahead/common/models.py b/src/linkahead/common/models.py
index 2dc8efa221b55ae35f2cf0549bed6a5a2c1f55c1..6e1d9e8fef5e4da6f277bf2302544ef4994e3efc 100644
--- a/src/linkahead/common/models.py
+++ b/src/linkahead/common/models.py
@@ -1045,7 +1045,7 @@ out: List[Entity]
 
                     return p
         else:
-            raise ValueError("pattern argument should be Entity, int or str")
+            raise ValueError("`pattern` argument should be an Entity, int or str.")
 
         return None
 
@@ -3966,7 +3966,7 @@ class Container(list):
         else:
             entity._checksum = None
 
-    # FIXME: The signature of Conatiner.insert is completely different than the superclass'
+    # FIXME: The signature of Container.insert is completely different than the superclass'
     #        list.insert method. This may be a problem in the future, but is ignored for now.
     def insert(  # type: ignore
         self,
@@ -3981,20 +3981,23 @@ class Container(list):
         identified, retrieved, updated, and deleted via this ID until it has
         been deleted.
 
-        If the insertion fails, a LinkAheadException will be raised. The server will have returned at
-        least one error-message describing the reason why it failed in that case (call
+        If the insertion fails, a LinkAheadException will be raised. The server will have returned
+        at least one error-message describing the reason why it failed in that case (call
         <this_entity>.get_all_messages() in order to get these error-messages).
 
-        Some insertions might cause warning-messages on the server-side, but the entities are inserted
-        anyway. Set the flag 'strict' to True in order to force the server to take all warnings as errors.
-        This prevents the server from inserting this entity if any warning occurs.
+        Some insertions might cause warning-messages on the server-side, but the entities are
+        inserted anyway. Set the flag 'strict' to True in order to force the server to take all
+        warnings as errors.  This prevents the server from inserting this entity if any warning
+        occurs.
 
         @param strict=False: Flag for strict mode.
         @param sync=True: synchronize this container with the response from the server. Otherwise,
-                          this method returns a new container with the inserted entities and leaves this container untouched.
-        @param unique=True: Flag for unique mode. If set to True, the server will check if the name of the
-                            entity is unique. If not, the server will return an error.
+                          this method returns a new container with the inserted entities and leaves
+                          this container untouched.
+        @param unique=True: Flag for unique mode. If set to True, the server will check if the name
+                            of the entity is unique. If not, the server will return an error.
         @param flags=None: Additional flags for the server.
+
         """
 
         self.clear_server_messages()
@@ -4264,9 +4267,7 @@ class ACI():
             e.set("role", self.role)
         else:
             if self.username is None:
-                raise LinkAheadException(
-                    "An ACI must have either a role or a username."
-                )
+                raise LinkAheadException("An ACI must have either a role or a username.")
             e.set("username", self.username)
 
             if self.realm is not None: